the answer is b...........................................................
Synonyms for the word externality could be: face, area, level, side, skin, top, etc.
Odd question...but, uh...if it helps...grab the stick that's in your eye and pull yourself to safety?
The answer is (D.) Systematic desensitization
Systematic Desensitization is the behavioural technique used by Dr. Shakar which is used to treat anxiety disorders, fear, and phobias like Takeshi who is having a social phobia. The technique is to gradually exposed the person like Takeshi to an anxiety-producing object, event or place like when she is asked to walk on a busy street.