Answer:
Attachment;Self concept
Explanation:
If infancy's major social achievement is <u>attachment</u>, childhood's major social achievement is the development of a <u>self concept</u>.
The major achievement of an infant would be the ability to feel attached to his surrounding and people around him. Where as a childs childhood develops his sense of existence and self concept. A child finds his identity and learns the concept of self development.
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The purpose of these both steps is that it gives the candidates a realistic, sensible, and practical preview of the vacant job. In both steps, candidates of the hiring process should know the job expectation versus reality so they will not be surprised if their expectation doesn't meet.
It’s not B that’s all I know sorry