Who was Mansa Musa
the fourteenth century Muslim ruler of Mali known for his hajj and the plans he brought back to Timbuktu

a Muslim leader who introduced Islam to the people of Mali

a Muslim emperor who ruled Ghana for fifty years and brought gold to his kingdom from Egypt

the name for the council of leaders that ruled Mali and arranged for trades with other nations

MANSA MUSA WAS: the fourteenth century Muslim ruler of Mali known for his hajj and the plans he brought back to Timbuktu

Explanation:

Mansa Mus was known as a ruler in the old Mali Empire in the fourteenth century between 1312-1337 CE. The Mali greatest ruler that they ever had who was a pure Muslim

Mansa Musa popularize the pilgrimage to mecca which brought Mali to limelight. He was also known for developing the Timbuktu city which was synonymous  with trade and culture promotion.

He was also note to have brought about the expansion of west boundaries towards the coast of the Atlantic

the underground railroad (apocope of the metropolitan railroad) is a system of urban trains located within a city and its metropolitan area. it is characterized for being a massive transport of passengers in the big cities, uniting diverse zones and their environs, with high capacity and frequency and in segregated form to other systems of transport. metropolitan railroads are built underground or on the surface, although most systems use mixed models where sections are combined in both modalities.

1 - as a result, the metro tends to reduce car travel for two reasons: first, due to the greater transfer of users from the car and, second, due to the reduction in the acquisition of cars in homes located in sectors near the stations of the metro.

2 -the metro allows to contribute effectively to the achievement of all the objectives of an urban development policy: it improves the efficiency of the city's economy by reducing travel costs and also generates a higher level of activities in the city center, taking advantage of of the agglomeration economies.

3 -it is a clean means of transport, since it uses renewable energy (usually electricity), taking care of the environment and avoiding excessive pollution.