On a Multi-Select Quant question, some prompts specify a fixed count (e.g., 'select THREE'). What happens if you select two correct answers when three were asked for?

ETS is explicit: Multi-Select has no partial credit. If the prompt says 'select THREE' you must pick exactly three correct ones; selecting two correct ones (or three including a wrong one, or four) all score zero. Read the count requirement at the top of each Multi-Select prompt before answering.