c is the answer because women got payed less because of woman suffferage
European colonization of Africa was mainly due to its need for raw material.
The invasion, territorial split, colonization and annexation of African territories during the period of the New Imperialism was know as The race for Africa, period which protracted from the 1880s to the beginning of World War I.
By the early twentieth century much of Africa, except Ethiopia and Liberia, had been colonized by European powers, despite the resistance Africa put up against the attempt to colonize their countries.
In the mock-up of an airplane cabin, heated yellow bags were placed where people would normally sit in order to replicate the situation where the plane is full of people. The yellow bags were heated since human body temperature is generally at 37 degrees Celcius. This is to correctly construct an experimental model of the airplane cabin.