Parts of the following sentence have been given as options. One of them may contain an error. Select the part that contains the error from the given options. If you don’t find any error, mark ‘No error’ as your answer.

You arrived two days ago. By the time you leave, you will have spent nine days here.

A

You arrived two days ago

B

No error

C

By the time you leave

D

you will have spent nine days here