Correct option is D
Administering an injection without the patient's consent constitutes battery, even if the family agrees. Battery refers to unauthorized physical contact. The nurse should have respected the patient’s refusal. Explanation of options:
· (a) ✘ Incorrect; patient's autonomy and consent are crucial in legal and ethical nursing.
· (b) ✘ Consent must be from the patient, not the family, unless legally authorized.
· (c) ✘ Assault is the threat of harm; battery is the physical act.
· (d) ✔ Correct; unauthorized injection qualifies as battery in legal terms.