An increase in the demand for gasoline today caused by concerns that gasoline prices will be higher tomorrow is most likely attributable to a change in:

income.

consumer preferences.

prices of other goods.

consumer expectations.

consumer expectations.

Explanation:

There will be change in the consumer expectations, since, according to the question, the consumers are sure that the price of the gasoline will increase tomorrow, hence to save some amount of money, they will start to buy gasoline, and thereby the demand for gasoline would increase and they would expect more gasoline.

Hence, The correct answer according to the data of the question is - consumer expectations.