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').

Ultrasonic liposuction fits into ____ categories.\Question: Choose the right answer from options given a) two b) seven c) nine d) one
a

Pups get their sight in about ____ days.\Question: Choose the right answer from options given a) five b) six c) ten d) nine
c

Psychiatrists categorize symptoms into ____ categories.\Question: Choose the right answer from options given a) five b) three c) ten d) six

b