The unique combination of benefits that users receive from 3m's flag highlighter, such as durability and convenience, is known as?

Customer value.

Explanation:

Customer value is associated with the kind of gratification or value that a customer gains or experiences after communicating with a firm or company for purchase or sale of a product or service.

As per the question, the distinct combination of advantages that the users receive from 3M's flag highlighter like durability and convenience exemplify 'customer value'(gratification) that the users/customers experience in return for the amount they pay for the service from the company. Therefore, 'customer value' is the answer.

taking a bath requires the most water out of the given options because it takes a significant amount of water in order to fill a bathtub.