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').

[Q]: Righteousness always points in ____ directions.\Question: Choose the right answer from options given a) six b) two c) one d) four
[A]: b


[Q]: Plants have at least ____ sHSP gene families which comprise a large multigene family.\Question: Choose the right answer from options given a) zero b) eight c) five d) seven
[A]: c


[Q]: Shanghai belongs to the North Asia hot monsoon climate, with ____ distinctive seasons.\Question: Choose the right answer from options given a) zero b) five c) four d) eight
[A]:
c