Leonard is constantly being bullied at school. He has become more withdrawn and gets agitated when questioned about his behavior. He has started to have nightmares about the school hallways. Leonard has .
a. obsessive-compulsive disorder
b. generalized anxiety disorder
c. post-traumatic stress disorder
d. panic disorder

Explain why methicillin resistant staphlococcus aureus (mrsa) is more prevalent now than it was only 30 years ago. a. antibiotics cause mutations in staphlococcus aureus that lead to an increase in the number of methicillin-resistant strains. b. methicillin resistance causes an infection to spread more rapidly.c. frequent and inappropriate use of methicillin-type antibiotics has provided selective pressure that has resulted in an increase in the proportion of methicillin-resistant strains of staphlococcus aureus.d. diseases like aids have made people more vulnerable to infections from staphlococcus aureus.