Same with you Anandnk, I hesitated between B and E and chose B.
A) is out because it is out of
the public's interest (which is singular)that
has grown a market...
C) the use of
another is out of context. We are talking about other people's lives in general, no about another person's life.
Another is an adjective used as one more in addition to one or more of the same kind.
D) is it the
booming market that is bringing people or
the television shows that are bringing people. The booming market is used as and adjective for what has developed from the people's interest but it is really the television shows that are bringing "regular" people ...
B and E's main difference is in the use of the conjugation tense.
B's use "are bringing" is appropriate because it implies continuity and that the television shows are still bringing those "regular" people on the television screen. Furthermore, E does not keep parrallel structures. "Out of the public's interest in details of and conflicts in other people's lives
has grown a booming market for "reality" television shows that
are bringing "regular" people onto the television screen with increasing frequency." Those two conjugated verbs should, together, demonstrate continuity in the idea of the growing market for reality TV shows and the constant and continuous gathering of "regular" people on those shows. Hence, the use of
has grown and
are bringing