Natalie is a college graduate who is seeking a job in business-to-business marketing. she would prefer to interact with her customers on an individual basis rather than directing her communications to mass markets. in this context, natalie should look for a job in

personal selling

Explanation:

personal selling refers to a business practice where companies hire a personal sellers to directly communicate to the consumers and sell their products to them. In return, the company will give a certain percentage of cut to the personal sellers.

This job is perfect for people who like interacting with people personally. They need to be able to understand what each consumers need within a short period of observation, and able to slowly convince the consumers that their product is the best to solve the consumers' need. Natalie seems to has this characteristic if she prefers interacting on individual basis rather than communicating with mass markets.