What happens next?

A guy is sitting on a roof and talking. The guy holds up an orange tool. A silver ladder is against the house. the guy

pick from the following. (I) uses the orange tool to remove pieces of the roof. (II) uses the ladder to remove the covered shingles. (III) climbs up the ladder, then lowers himself to the roof. (IV) grabs the ladder and turns around.
(I)