Given below is a statement followed by tow conclusions numbered I and II. You have to assume everything in the statement to be true, then consider the two conclusions together and decide which of them logically follow(s) beyond a reasonable doubt from the information given in the statement.

Statement: A doctor doubled his fees.

Conclusion I: His revenue doubled, so the number of patients have remained the same.

Conclusion II: His revenue decreased, so the number of patients has fallen by more than half.