Consumer tastes or preferences would be most likely to have an effect on
a. the law of supply.
b. elasticity.
c. supply.
d. demand.

Consumer tastes or preferences would most likely have an effect on D. DEMAND.

If a product is numerous and affordable but is not in accordance to consumer's taste or preference, then there will be no demand on the product supplied.

If the product has limited stock and is costly but it is preferred by the consumers, then demand of the good will still be steady.