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').

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 baleen whales have ____ blow holes.\Question: Choose the right answer from options given a) zero b) four c) seven d) two
d

Cancellous bone has ____ times the available surface area compared with compact, or cortical bone.\Question: Choose the right answer from options given a) five b) ten c) one d) no

a