Search for grammatical errors in the underlined sections of the following sentences and select the option that best corrects them. If there is no error, choose option A.

In August my parents will be married for twenty-five years.

will be married for twenty-five years.
shall have been married for twenty-five years.
will have been married for twenty-five years.
will be married for twenty five years.
will have married for twenty-five years.