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.
`("Today the cost of living")/a` `("is such higher that many people")/b` `("find it difficult to keep their hearth burning")/c` `("No error")/d`

Explanation

(b) Say .so high.