Question

selena is observing the behavior of grizzly bears in alaska to learn more about them. what kind of investigation is this? descriptive investigation comparative investigation experiment none of these

Explanation:

A descriptive investigation involves observing and describing a phenomenon. Here, Selena is simply observing grizzly - bear behavior without making comparisons (as in comparative investigation) or manipulating variables (as in an experiment).

Answer:

A. Descriptive investigation