This photo depicts modern day cuba
how does this picture illustrate an effect of national security
policies against cuba?
a. it shows that cubans cannot afford new and modern
items
b. only necessities such as transportation are available to
people
c. modern american cars are not available due to trade
restrictions
d. the empty street shows a lack of tourism and travel.

C). Modern American cars are not available due to trade  restrictions.

Explanation:

As per the question, the given picture demonstrates that 'Modern American cars are not available due to trade  restrictions' which is an impact of national security policies against Cuba. It reveals that in regard to the national security policies of Cuba, there were certain restrictions posed on trade and commerce for various security reasons. Due to this, the modern American cars could not be made available for public. Thus, option C is the correct answer.

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the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.