Correct Answer: C

Rationale: Play is an effective way to communicate and build rapport with young children, especially pre-schoolers. It helps them feel comfortable, express themselves, and establish a connection with the caregiver. Lengthy discussions may not be suitable for their age and attention span, while explanation with drawings and models can enhance communication but may not engage them as effectively as play. Silence, on the other hand, may create a sense of unease or lack of interaction for pre-schoolers.

Correct Answer: C

Rationale: Fear of strangers typically begins around 6 months as infants start recognizing familiar and unfamiliar faces, which is part of their social development.

Correct Answer: A

Rationale: Encouraging the parent to express their feelings is crucial in providing support and addressing the emotional challenges that colic can present. Reassuring the parent about the temporary nature of colic can also be helpful.

Correct Answer: B

Rationale: Performing a baseline physical and behavioral assessment is crucial to determine the infant's current health status and to identify any potential risks before surgery.

Correct Answer: A

Rationale: Itching is typically the primary and most common symptom of pediculosis capitis due to the lice bites on the scalp.