The following question consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer.Question: How many speeches were delivered in the two days' programme ?Statements: I. 18 speakers were invited to give at least one speech (maximum of two speech), out of which one-sixth of the speakers could not come.II. One-third of the speakers gave two speeches each.

• A. I alone is sufficient while II alone is not sufficient
• B. II alone is sufficient while I alone is not sufficient
• C. Either I or II is sufficient
• D. Both I and II are sufficient