How many brother does A have? I. A, who is B's brother, has two siblings. II. D is brother of A and is youngest in the family.

• if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question.
• if the data in Statements II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.
• if the data either in Statement I alone or in Statement II alone are sufficient to answer the question.
• if the data in both the Statement I and II together are not sufficient to answer the question.