Given a sentence with a missing word, pick the answer option that best fills out the missing word in the sentence. Indicate each answer with its index ('a', 'b', 'c', 'd').

Most families have between ____ and eight children.\Question: Choose the right answer from options given a) four b) one c) five d) three
c

National immunization vaccinates all children under ____ against polio.\Question: Choose the right answer from options given a) zero b) four c) ten d) five
b

Diatomic molecules contain ____ atoms that are chemically bonded.\Question: Choose the right answer from options given a) four b) two c) six d) ten

b