Read each sentence to find out whether there is any grammatical mistake/error in it. The error if any will be in one part of the sentence. Mark the number of the part with error as your answer. If there is 'No error' mark (d).
`("The boss reminded them of the old saying")/a` `("that honesty was the best policy")/b` `("and told them that they had better be honest in their wrok.")/c` `("No error")/d

Explanation

(b) Use .is. in place of .was.