In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
The mobile phone which was primarily used to communicate with the outside world, (1)/ has now become our primary instrument (2)/ of being wrapped up in our own self. (3)/ No error (4)

Options

A. 1
B. 2
C. 3
D. 4

Answer

C