Fritz cannot stop washing his hands; he does it 23 times a day. Violet cannot stop thinking about when and how she is going to die; these thoughts plague her 18 times every hour. Fritz suffers from a(n) __________, whereas Violet suffers from a(n) __________.
1) obsession; compulsion
2) compulsion; obsession
3) mood disorder; personality disorder
4) personality disorder; mood disorder