Infants have a natural habituation tendency to look longer when a new item appears compared to the subsequent presentation of the same item or similar item. In an experiment, infants stay visually focused for about 10 seconds when a monkey's face is presented to them. When another monkey's face is then presented to the infants, they again look at the face for about 10 seconds. This means that the infants .

This may be because they drink they do not have fully developed their nervous system and also do not have a complete development of sight, that is why they see a blur until the third month of life.

Explanation:

The development of the neurological system of babies, along with the senses is progressive during the first year of life, the reflexes that babies acquire, such as the postural tension reflex of the head, are indicators of the progression of their nervous system.

i have to go with a for this one

manifest functions are the recognized and intended consequences of any social pattern, while latent functions are those unrecognized and unintended consequences. to analyze the manifest functions of any social institution, we have to study its contribution to the continuation of a group, community, or society.