It means that what is that set of beliefs and it also tells us that is not important how important it is, In other words it importance doesn't matter.
Answer:
The weather has been nice but, it may snow again any day.
B, that is the only one that makes sense in this sentence. If the sentence was worded differently than it would be, C
When news stations were talking about the immigrant families being separated from children can be very biased because some news anchors support Trump in whatever he is doing and other do not support him or agree with what he is doing it can be problematic because the news anchors in favor of trump will only talk about the good things about him meanwhile the ones opposed to him will talk about bad things about him
1. A
2. D
3. D
I hope this helped ^_^