Choice A rationale:

Psychological evaluation of the caregiver - This choice is not typically a component of the nursing assessment of child abuse. While understanding the caregiver's psychological state can be important, the focus of the assessment is primarily on the child's well-being and safety.

Choice B rationale:

Collecting subjective and objective data - This is a crucial component of the nursing assessment for child abuse. Gathering both subjective information and objective data (physical examination findings, lab tests) helps in forming a comprehensive understanding of the situation and aids in making informed decisions.

Choice C rationale:

Assessing the child's developmental milestones - This is important because assessing the child's developmental milestones can provide valuable insights into their overall well-being and potential developmental delays. Abuse can have a significant impact on a child's development, so this assessment helps in identifying any concerns.

Choice D rationale:

History-taking from the child only - While taking history from the child is important, it's not the only source of information. Children might be hesitant to disclose abuse directly, and relying solely on their history might miss crucial information. Involving caregivers, witnesses, and other professionals is essential for a comprehensive assessment.

Choice E rationale:

Ensuring the child's consent and comfort - This is a critical aspect of the assessment. Ensuring the child's consent and comfort builds trust and promotes effective communication. It allows the child to feel safe and more likely to share important information about their situation.