Began his research career by studying learned in dogs, and later, in humans. he applied his findings to psychological problems in humans, including depression, and he investigated why some people succumb to learned while others persist in the face of obstacles.

Martin Seligman

Explanation:

Martin Seligman was the person who created the theory of learned helplessness.

When an animal is subjected to repeated aversive stimuli which they have no control over they exhibit a type of behavior called learned helplessness. Current research indicates the reason for learned helplessness is that the brain has always perceived that it has no control of any situation but learns about helpfulness.

d.

thist title points out that you are explaining the nature of the u.s. government. it is the most specific. a representative government consists of a government where decisions are taken according to a voting system. the most essential aspect of a representative government is found in the different structures where voting rights are granted to different groups of people. for example, voting for governor, mayor, president, local police chief etc.