A stereotype is an oversimplified perception of a behavioral pattern or characteristic applied to entire groups. For example, the Swiss are hardworking, efficient, and neat; Germans are formal, reserved, and blunt; Americans are loud, friendly, and impatient; Canadians are polite, trusting, and tolerant; Asians are gracious, humble, and inscrutable. In what way are such stereotypes harmless or harmful? (L. O. 2, 3)

The answer is below

Explanation:

Given that stereotype has to do with the perception of the whole group of people or things. It can be harmful because it tends to hinders people to base their viewpoints objectively. Which oftentimes result in unfair, dubious, and hateful communication.

Besides, humans tend to act based on the preconceived notion, which is stereotypes. And it can affect a lot of relationships, be either business or romance.

i am pretty sure it is d.