ASAP please

Decide if the following claim clause would trigger use of this subjunctive mood.

1. Es evidente que
2. Es obvio que
3. Creer que
4. No creer que

The subjective mood will be necessary.

The subjective mood will not be necessary.

The subjective mood *IS* used:

4. No creer que  

The subjective mood is *NOT* used:

1.  Es evidente que

2. Es obvio que

3. Creer que

Explanation:

when you are going to explain a procedure,   the first thing to do is to name the parts or the apparatus you are going to describe in terms of how it or they function. also it is important to know who is going to operate it and the abilities this man/woman requires to manage it.

what exactly am i supposed to answer