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]: Black widows mature in ____ to four months.\Question: Choose the right answer from options given a) two b) seven c) eight d) zero
[EX A]: a

[EX Q]: Toenails are similar , except that they grow ____ times slower and are on the toes .\Question: Choose the right answer from options given a) two b) eight c) six d) four
[EX A]: d

[EX Q]: Flowers are abundant with ____ different plant communities, including mosses and orchids.\Question: Choose the right answer from options given a) nine b) zero c) five d) three
[EX A]:
a