If an act of civil disobedience—willfully breaking a specific law in order to bring about legal reform—is done out of self-interest alone and not out of a concern for others, it cannot be justified.
Principles
act of civil disobedience done out of self-interest → can't be justified alone and not a concern for others
one's conscience requires one to perform an act of → justified civil disobedience
Evaluate / Goal
When an Apply the Principle question such as this provides two principles, we're only going to use one or the other to justify the correct answer.
As we read each answer, we should start by seeing whether the conclusion is saying "not justified", in which case we'll use rule 1, "justified", in which case we'll use rule 2, or something else, in which case we'll automatically eliminate that answer.