Consider the following statements about mosquitoes.
1. Only males suck blood.
2. Only females suck blood.
3. Females suck plant juices.
4. Males have bigger wings than females.
5. Females have bigger wings than males.
Of these

1) If the data in statement I alone is sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question.

2) If the data in statement II alone is sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question.

3) If the data either in statement I alone or in statement II alone is sufficient to answer the question.

4) If the data even in both the statements I and II together are not sufficient to answer the question.

5) If the data in both statements I and II together are needed to answer the question.