Which of the following has given consumers unprecedented power to express likes and dislikes, compare prices, find the best deals, sift through huge numbers of recommendations, and have items delivered

The correct answer is letter "A": Digital technology.

Explanation:

When talking about commerce, digital technology has allowed buyers and sellers from different parts of the world find and offer goods and services without the need to physically meet. The transaction also includes all the steps and efforts necessary to deliver consumers the product at the door of their houses.

Besides, digital technology has allowed consumers to express their ideas massively based on the experience they had with the digital vendors and price so other prospective consumers have an idea of the service provided by the merchant is good or if they should look for a different seller.