Jeffrey arnett has proposed a new developmental stage for the years between age 18 and 25 that he calls:

This is emerging adulthood. This stage encompasses the time frame in which a person is typically without children, not living on their own, but also not having the means to be fully independent. This stage is typically defined as between adolescence and full-fledged adulthood, since there are typically areas in which the person is still trying to develop an identity, such as in relationships and employment.

Ibelieve your answer would be answer choice a