The point Emerson made about conformity is that whatever people believe in is right and no matter what people say don't believe them.
B, because running is a verb and none of the other sentences have verbs, verbs are action words.
Dean Ornish talks about simple, low-tech and low-cost ways to take advantage of the body's natural desire to heal itself.
An allegory is defined as C. A STORY WITH A LITERAL MEANING AND A SYMBOLIC MEANING.
An allegory is a representation of an abstract or spiritual meaning through concrete or material forms. It is a symbolic narrative like a fable or parable.
You might be confused because choice B. a narrative written specifically to teach a moral or lesson nearly defines an allegory. However, it specifically defines a fable.