Vaccines are used to prevent infections, usually viral.
Some antibiotics act by killing bacteria.
The answer to this is B. <<<<
Most people start to face new issues at the ages of 11-13 some may gain this at older ages, but it typically starts around that time, some causes of this are: Puberty;School; Problems at home; etc.
The therapy for anxiety disorder is called as cognitive behavioral therapy and is used to treat various phobias, panic attacks, social anxiety etc. Cognitive therapy is the assessment of negative thoughts contributing to anxiety. Behavioral therapy is the observation of the reaction of the person towards these thoughts. Medications for the same includes serotonin reuptake inhibitors.
