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').

[EX Q]: Pelicans use ____ different ways to feed.\Question: Choose the right answer from options given a) no b) nine c) one d) two
[EX A]: d

[EX Q]: Black bears stand ____ to six feet long and almost three feet at the shoulders when on all fours.\Question: Choose the right answer from options given a) three b) five c) four d) one
[EX A]: b

[EX Q]: Ear buds have no cuffs that surround the ear, and ____ headband.\Question: Choose the right answer from options given a) no b) three c) five d) nine
[EX A]:
a