IBPS Clerk Prelims 8-Dec-2018 Paper

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 candidate's 'teamwork' skills (A)/ and determination convinced (B)/ the recruiters that he was (C)/ perfect to the job (D)