Which of the following are described as characteristics of attachment? a. Infants become attached to the people who play and interact with them. b. By twelve months the infant responds mainly to the primary caregiver. c. After an absence, the infant responds with caution. d. During the first six months the infant responds positively to any person.

All of the options (a, b, c, d) are characteristics of attachment.

a. Infants do become attached to people who interact and play with them regularly. This is because they start to recognize and feel comfortable with these individuals.

b. By twelve months, infants often show a preference for their primary caregiver, usually the mother or father. This is known as "secure base" behavior, where the infant uses the caregiver as a base from which to explore their environment.

c. After an absence, infants may respond with caution or anxiety. This is known as "separation anxiety" and is a normal part of attachment development.

d. During the first six months, infants are generally sociable and will respond positively to almost anyone. This is because their attachment system is still developing and they have not yet formed specific attachments.

All of the options (a, b, c, d) are characteristics of attachment.

a. Infants do become attached to people who interact and play with them. This is because they associate these individuals with care, comfort, and security.

b. By twelve months, infants often show a preference for their primary caregiver, usually the mother. This is known as "secure base" behavior and is a key indicator of attachment.

c. After an absence, infants may respond with caution or anxiety. This is known as "stranger anxiety" and is another key indicator of attachment. It usually starts to appear around 8-9 months of age.

d. During the first six months, infants are generally sociable and will respond positively to almost anyone. This is because their attachment system is still developing. However, this does not mean that they do not form attachments during this time. They are simply more indiscriminate about who they form attachments with.