Which scenario would create a challenge for efficient global trade? a. surplus production capacity in a country b. unhealthy relations between countries c. ease of labor movement between countries d. multiple trade alliances in a single country e. multiple treaties signed with a single country

The correct answer is B) unhealthy relations between countries.

The scenario that would create a challenge for efficient global trade is unhealthy relations between countries.

Nothing more generate damage between nations that unhealthy relations. If we review the history of wars in recent times, we can confirm this. That is why trade is a good solution to improve the foreign relations of nations. One of the best examples is NAFTA. The North America Free Trade Agreement signed by México, the United States, and Canada. This agreement has helped to solidify the relationships between these three countries and has improved the economy of the three. In recent days, NAFTA changed to USMCA, the United States, México, and Canda Agreement.

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1960: wilma rudolph was the first woman to win three olympic gold medals in track and field at one olympic games. she was an american sprinter from tennessee, she was acclaimed the fastest woman in the world. she was among the most visible black women in america and abroad. she became a role model for black and female athletes. she was also known as a civil rights and women right's pioneer.

1973: billy jean king is an american former number one tennis player. she represented the united states in the federal cup and the wightman cup. for three years she was the usa's captain in the federation cup. she defends gender equality and has been a pioneer for equal and social justice. at the age of 29, she won "the battle of sexes" tennis match against the 55 year old bobby riggs. she was also the founder of women's tennis association and the women's sports foundation.  

1983: tamara mckinney becomes the first american female skier to win the alpine world cup overall championship top. she was the only american to hold that title for a quarter century until 2008.

1992: manon rhéaume, from canada,   becomes the only woman to start in a national hockey league game in an exhibition game for the tampa bay lightning . she played on the canada women's national ice hockey team winning gold medals in 1992 and 1994. and silver medals in 1998. manon marked the first time a woman appeared in a regular season professional game with her first appearance against the salt lake golden eagles.

2013: serena williams won 78 of 82 matches at the age of 31. she is an american professional tennis player. she reached the number 1 ranking for the first time on july, 8, 2002. at the age of 16, she played against karsten braasch the battle of sexes. she was the highest paid female athlete in 2016. she is a unicef ambassador .