Psychologist daniel levinson has studied the developmental periods or life stages involved with the aging process. according to levinson, men and women often experience a stressful period of self-evaluation that he termed as

the midlife crisis is the correct answer.

Explanation:

Did an assignment on this.

1. state-issued photo ids. provide them for free for those who can't afford them.

2. the system we have seems to be working nearly perfectly. seems like about 31 cases per billion votes cast

3. the national policy for hiring new employees which requires proof of eligibility to work. there are something like 20 types of identification which can be used for this.

c. taught scientists many new things about the earth, but not other planets.

explanation: