Candy and tacos have relatively horizontal demand curves which are said to be

PERFECTLY ELASTIC

Explanation:

If the demand curve looks like a horizontal flat line, it is said that demand is perfectly elastic.

When demand in market is affected by a small change in price, that demand becomes a perfectly elastic demand.

In perfectly elastic demand, a little increase in the price causes a fall in demand. Leading demand to zero. While a little decrease in price causes an increase in demand to infinity.

In such a case, we conclude that demand is perfectly elastic.

If Candies and Tacos have a relatively flat demand curve, it means that their prices are very stable and will rarely if every change.

A horizontal demand curve is a flat curve with a slope of zero. It is a perfectly elastic demand curve. Because the slope of the curve is zero, it is impossible for the price to change in the market.

Cheers!

the answer is a) to be able to obey them.