The following sentence has been divided into parts. One of them contains an error. Select the part that contains the error from the given options.
You must avoid riding in a crowded bus / or travelling in a metro / during rush hour / as both are quiet unpleasant experiences.

Options

A. as both are quiet unpleasant experiences
B. or travelling in a metro
C. You must avoid riding in a crowded bus
D. during rush hour

Answer

A