Parts of the given sentence have been given as options. One of them may contain an error. Select the part that contains the error from the given options. If you don’t find any error, mark ‘No error’ as your answer.

Mylar balloons cause power outages when they come of contact with power lines.

A

Mylar balloons cause power outages

B

with power lines

C

when they come of contact

D

No error