94 (option A)
Step-by-step explanation:
Number of acres of land to build house = 23 1/2
In mixed fraction = 47/2
1 house = 1/4 acre lot
1 acre = 4 lots
47/2 acres = x
cross multiply:
x(1) = 4(47/2)
x = 2(47)
x = 94
The company will build houses on 94 lots (option A)