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').
--------
Question: Tilt consists of ____ small surface vents.\Question: Choose the right answer from options given a) zero b) three c) seven d) no

Answer: b


Question: Takins can even balance on their hind hooves to nibble on vegetation ____ feet above ground.\Question: Choose the right answer from options given a) two b) no c) nine d) eight

Answer: d


Question: Unipolar cells have ____ dendrites arising directly from the cell's soma.\Question: Choose the right answer from options given a) no b) eight c) three d) five

Answer:
a