This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to know if you have anxiety
Watch for episodes of excessive or intense worry.
Perhaps the most characteristic feature of anxiety is a long-lasting or intense feeling of dread and tension. Sufferers of anxiety often find themselves worrying constantly, even when they have nothing in particular to worry about.

Select from the following.
[A]. These episodes can correlate to any issues we have with one another. Pay attention to what you're thinking about.
[B]. These fears can accompany anxiety symptoms like anxiety or block picture information from the brain, or they can be alleviated with practice or outside noise. Anxiety can also hamper sleep; however, it may manifest itself in more than a few interactions with non-existent sources of anxiety.
[C]. Worrying is often accompanied by physical tension and jitteriness, and is characterized by a pessimistic attitude, and an anticipation of the worst outcome in the situation causing the worry. Identify feelings of blankness or being unreal.
[D]. The anxiety may then run its course, only to become worse and more intense. Pay attention to any tense or tension you feel and how it interferes with your daily life.
The answer is:
[C].