Select the option that expresses the given sentence in active voice.

Q:

The old woman was helped by the boy while crossing the road

• 1
  The boy has helped the old woman while crossing the road.
• 2
  The boy is helping the old woman while crossing the road.
• 3
  The boy was helped the old woman while crossing the road.
• 4
  The boy helped the old woman while crossing the road.