Some of the sentences are grammatically correct and some are incorrect. Find out which part of the sentence has an error and mark that part. If there is no error , mark that part as your answer.
`("I don't usually like staying at hotels")/a` `("but last summer we spent a few days")/b` `("at a very nice hotal by sea")/c` `("No error")/d`

Explanation

(c) Say .by the sea.