Answer:
d. oral
Explanation:
During the oral phase, food-related activities such as sucking and chewing are the most important.
The main interaction source of the child is done through the mouth, which is of vital importance for food, but also the child through it gets pleasure thanks to satisfactory activities such as tasting and sucking. Because the baby is totally dependent on the caregivers (who are responsible for their feeding), the child also develops a sense of confidence and comfort through this oral stimulation.
