Step 1: Identify wound type — puncture wounds like nail pricks, bites, splinters.
Step 2: Hypericum perforatum is famous for injuries to nerves. Its key use is for puncture wounds with shooting pains due to nerve involvement.
Step 3: Arnica is for blunt trauma and bruises. Calendula is for clean cuts. Ledum also helps puncture wounds but more for bites and coldness — Hypericum is first choice.
Thus, the correct answer is (A) Hypericum.