C. Because that is what Walter Senior told her to do with the money
Explanation:
Mama shared the dream of buying a house for the whole family with her husband , Walter Younger. Unfortunately, they could not buy one because he died. However, Mama and her children, Ruth and Walter -Junior-, inherited money from an insurance and this money was enough to buy the house. Mama could not buy the house easily, though, because she had to face a lot of problems with her children, mainly with Walter. Walter wanted that money for other means: to run a liquor factory.