Which of the following items is required equipment on a lifeboat making an international voyage but is NOT required on a rigid liferaft (SOLAS A pack) on the same voyage?

Why C is correct

Per Table 1 to 46 CFR §199.175, a bilge pump (Item 2) is required for a lifeboat on an international voyage but the corresponding column for a rigid liferaft (SOLAS A pack) shows no bilge pump requirement. Flashlight, heaving line, and first aid kit are required for both.