Sixteen-month-old nina cries and appears distressed when her parents leave her with the babysitter she has known since she was born. nina is . temperamental issues2. stranger anxiety3. an avoidant attachment4. separation anxiety

4. separation anxiety

Explanation:

Separation anxiety -

It refers to the extreme situation of stress and fear , from any type of separation , is referred to as separation anxiety.

This stage is seen very commonly in infants , where the child tends to cry and gets stressed out while separating from his or her parents.

Similar situation is given in the question, where the Nina suffers from separation anxiety .

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