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').

Electrolytic capacitors have a finite lifetime, usually about ____ years.\Question: Choose the right answer from options given a) zero b) ten c) four d) eight
b

Laparoscopic surgery is performed via three or ____ small incisions in the abdomen.\Question: Choose the right answer from options given a) nine b) six c) five d) four
d

Cockroaches have six legs, ____ antennae and some have wings.\Question: Choose the right answer from options given a) nine b) two c) four d) seven

b