In the given sentence, identify the segment which contains the grammatical error. A 12 year old archer was airlifted to Delhi when he met with an accident while practice for the Khelo India Games in Guwahati.

Options

A. was airlifted to Delhi
B. when he met with an accident
C. A 12 year old archer
D. While practice for the Khelo India Games

Answer

D

Explanation

As the action was in continuous form in the past, practicing. will be used.