The following sentence has been split into four segments. Identify the segment that
contains a grammatical error.
Even though Mahindra & Mahindra warn / consumers not to use low-standard engine oil, / people refuse to read the instructions / and damage their vehicles.

A

people refuse to read the instructions

B

Even though Mahindra & Mahindra warn

C

and damage their vehicles

D

consumers not to use low standard engine oil