Please choose the correct ending to complete the given sentence: Doing motocross: A person stands with sign at the end of the dirt race track. A person lifts a dirt bike and places on a stool. A male child runs and smiles. a helicopter

Ending1: lands and a crowd seats. Ending2: hovers over the race track. Ending3: flies into the sand. Ending4: touches down then land.

Answer format: ending1/ending2/ending3/ending4