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').

All quetzals have ____ legs.\Question: Choose the right answer from options given a) four b) zero c) eight d) ten
a

Black women die from cervical cancer at ____ times the rate of white women.\Question: Choose the right answer from options given a) five b) one c) two d) three
d

Spiders produce up to ____ types of silk.\Question: Choose the right answer from options given a) three b) seven c) nine d) six

b