Select all sentences that correctly distinguish a precaution taken beforehand with in case from a reaction taken later with if.
Pack a paper map now in case the phone signal disappears later.✓Bonne réponse
Pack a paper map now if the phone signal disappears after you have left the car park.
If the sensor beeps during the test, stop the pump then.✓Bonne réponse
Stop the pump now in case the sensor is already beeping at this moment.
Explication
Packing the map is a precaution completed before any signal loss, while stopping the pump is a later reaction triggered by a beep. The other sentences assign if to the beforehand action or use in case for an event already occurring now.