This big question requires candidates to judge whether the given conditions (1) and (2) fully support the conclusions stated in the stem (regardless of whether the conditions are necessary). The five options A, B, C, D and E are the judgment results. Please choose a judgment that meets the requirements of the question.

The condition (1) is enough, but the condition (2) is not enough.

B condition (2) is sufficient, but condition (1) is not.

C conditions (1) and (2) are not enough to be used alone, but the combination of conditions (1) and (2) is enough.

D condition (1) is sufficient, and condition (2) is also sufficient.

E. Conditions (1) and (2) are not sufficient alone or in combination.

Examples are as follows:

Remarks: The step of doing conditional questions is to deduce the stem from the condition, that is, first, see whether the stem can be derived from the condition (1), and then see whether the stem can be derived from the condition (2). Only when the condition is a subset of the stem can the stem be derived from the condition. Conditions (1) and (2) in the above question are subsets of the stem of the question, so (1) and (2) are sufficient, so choose D.