Which of the following best explains a development in the trans-­Saharan trade networks in the period 1200–1450? (A) The networks became more dangerous because of religious conflict between Christian and Muslim
states.
(B) The geographic range of the networks increased because of improved commercial practices.
(C) The networks were increasingly disrupted because of the growing importance of maritime commerce.
(D) The value of merchandise along the networks increased because of demand for silver and bronze from
Muslim states in North Africa and the Middle East.

The geographic range of the networks increased because of improved commercial practices

Explanation: I found it

1) the taiping rebellion was prompted from 1850-1864 and waged against the ruling of machu qing dynasty. the rebellion was caused by hong xiuquan and class differences, later leading to a radical change in social and economic structure.

3) karl marx, a believer of the principle of socialism, believed that the working class would have to free themselves from the exploitation of industrialists by establishing a radical socialist classless society where all industries and   property are owned by the state.

5) as indians revolt gained power, people found additional reasons to protest against the british rule. princely families joined the uprising due to changes to the inheritance law which made adopted children ineligible to assume the throne. this was an attempt by the british to control royal succession in the princely states that were nominally independent from the british.

a peace conference held after the surrender of japan

an international conference held near the end of world war ii

a meeting of the victorious nations after the defeat of germany

a summit meeting between the united states and the soviet union