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').
--------
Question: Widowed men are ____ times as likely to be murdered.\Question: Choose the right answer from options given a) two b) four c) three d) no

Answer: b

Question: Plants have three and ____ way branching carying sixteen buds.\Question: Choose the right answer from options given a) seven b) six c) four d) ten

Answer: c

Question: Most astronauts sleep for just ____ hours.\Question: Choose the right answer from options given a) six b) ten c) five d) two

Answer:
a