The correct answer is letter A. Assembly picture sheet is a category of drawing which shows multiple parts to be put together. Assembly drawing or assembly picture sheet shows different separable parts which are joined to form an item. It may also be an inseparable assembly drawing which shows separate items which are permanently joined together to form a unit that is not capable of being disassembled.
It can also be an installation assembly drawing which shows how different materials are installed in different places. In an assembly picture sheet, the list of material or parts list should be included to provide the individual parts or subassembly item number, its description, part number, the material used and the material specification.