Answer:
A. it takes time for people to change their consumption habits.
Step-by-step explanation:
Elasticity is a measure of the sensitivity of demand to price changes. We say that a demand is elastic when a slight variation in price is sufficient to impact the demand for a good or service. On the contrary, we say that demand is inelastic when price changes do not significantly change demand for the good. Normally goods are more elastic in the short run, as consumers tend to be refractory to price increases and slow the purchase of goods. Consumers tend to worry that it may be a passing price increase. However, in the long run consumers' perceptions of price increases adjust and demand normalizes, especially if the good is an essential good. For example, rising gasoline prices may decrease demand for gasoline in the short term. In the long run, consumers end up buying gasoline because it is a necessity item for those who own cars. Therefore elasticity tends to be less elastic in the long run.