If you are asking if this is true, then you are right. 
Abstinence prevents pregnancy and prevents STD's
        
             
        
        
        
If 
250mg dose = 1.2 micrograms
then 500mg dose =1.2 * 2 micrograms
answer is 2.4 micrograms
        
             
        
        
        
Answer: Mental, Verbal, Social
Explanation: Mental is you think something wrong with you. Verbal is someone telling you something is wrong or makes you think something is wrong that leads to Verbal. Social is friends and family who tell you or (try) to make you think something is wrong with you
 
        
             
        
        
        
The answer is C hope this helps.