You are given a question and some statements. Decide which of the statements are sufficient to answer the question.
Question:
Four children A, B, C, and D live in the same colony. Who is the heaviest among them?
Statements:
1. A is heavier than C and D.
2. D is the lightest among them.
3. B is heavier than A.
1
Statement 2 alone is sufficient.
2
Neither statement 1 nor statement 2 is sufficient.
3
Statement 1 alone is sufficient.
4
Statements 1, 2 and 3 all together are sufficient.