Exposure to Western concepts, along with urbanizing and industrializing of the economy has caused a drop in family size in Libya from _____ in 1975 to _____ children in 2010.
a. 8.0; 4.1
b. 7.5; 3.0
c. 7.7; 3.2
d. 8.2; 4.5
e. 7.0; 2.75