Lola often experiences abrupt, brief episodes of overwhelming fear. She does not know what triggers them, but she has these attacks in the grocery store, in busy restaurants, and even while driving. During these attacks, Lola's heart pounds and she has difficulty breathing. She fears that she may go crazy or have a heart attack. In the context of psychological disorders, it can be inferred that Lola may have:
A. catatonia.
B. panic disorder.
C. aerophobia.
D. somatoform disorder.