The correct answer is A. Trust
Step-by-step explanation:
According to the American psychologist Erik Erikson, the first stage of development in children is the stage of Trust vs Mistrust that takes place from birth to 18 months. In this, children learn to trust or not other people, this depends on whether parents and people that interact with the child respond to his/her needs including nourishment, protection, comfort, and attention. In this way, if people respond and fulfill the needs of the child, he or she would trust other people otherwise mistrust would develop.
In the case presented, it can be concluded Amy is developing a sense of trust because her parents respond to her need that includes feeding her and changing her diapers, and based on this she would learn to trust other people.