some of the sentence are grammatically correct and some are incorrect. Find which part of the sentence has an error and mark that part. If there is no error,mark that part as your answer
`("Ostensibly he was on a business trip") /a` `("but he spent most") /b` `("of time on the beach")/c` `("No error")/d`

Explanation

(c) Say .most of the time.