The given question is followed by two statements numbered I and II. The question may or may not be answered with the help of these statements. You have to decide if these statements are sufficient to answer the question.On what date is Z's birthday ?statements:I. X says that Z's birthday falls sometime in February, 1974.II. Y says that Z's birthday falls after 21st of the month.

• A. Only one of the statements, alone, is sufficient to answer the question but other statement is not.
• B. Both statements I and II together are sufficient to answer the question asked but neither statement alone is sufficient.
• C. Each statement alone is sufficient to answer the question.
• D. Statements I and II together are not sufficient to answer the question asked and additional data to the problem are needed.