Select all that apply. Which deductions correctly follow from the evidence stated in each sentence?
The engine is still hot, so the driver must be nearby.✓پاسخ درست
The receipt shows a cash payment, so the customer can't be the person who paid in cash.
The signature differs from every archived sample, so the sketch can't be by that artist.✓پاسخ درست
The nursery lights are off, so the children mustn't be in the brightly lit playroom.
توضیح
The engine's heat supports the positive inference with must be, and the archived signature rules the artist out with can't be. The other sentences either contradict their evidence or misuse mustn't as negative deduction.