Answer: It is written by a biographer.
A biographer is a person who writes true stories about other people. The people who write autobiographies are autobiographers, who write their own life stories/story. If these people where biographers, they would have written stories about other people.
It is true that semantics (a branch of language dealing with the meaning of words) considers both the connotation (the feelings a word evokes in you) and the denotation (the actual meaning of the word) of words.
The second one, the last one ( I think )
b. unique
unique is a synonym for unusual. Typical and routine are antonyms (opposite) of unusual, and unpleasant is unrelated.
*anyways can you answer my dog survey on my profile?