For each of the following pairs, which of the two goods is more likely to be elastically

Question:

For each of the following pairs, which of the two goods is more likely to be elastically supplied?
a. Supply of apples over the next growing season vs. supply of apples over the next decade
b. Supply of construction workers in Binghamton, New York, vs. supply of construction workers in New York State
c. Supply of breakfast cereal vs. supply of food
d. Supply of gold vs. supply of computers