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').

Women gain ____ years per child they had.\Question: Choose the right answer from options given a) ten b) nine c) four d) two
d

Marriage is the legal union of ____ people.\Question: Choose the right answer from options given a) one b) no c) five d) two
d

All regular quadrilaterals have ____ right angles.\Question: Choose the right answer from options given a) no b) nine c) four d) five

c