close call between A and C.
A new way is paved in the form of a new segment of a market.Hence POE.

C underestimation by trying to do the same product. C it is.

usage of both is wrong here.hence eliminate A,B and E. the structure can be rooted in ...of while both of Smith and of Duke.

usage of who is awkward. Also he does not have a clear antecedent. C eliminated.

D usage of pronoun that is correct here.He refers to T. Monk.
D it is.

A,E does not specify percentage of what ? population or it can be anything.Eliminated.
B compares 43% with decade. hence eliminated.
D uses double comparison between today and decade as well as between 43 and 35 %. hence eliminated.

C is the correct usage here.

Dear Friends, I was having problems in answering the following question. Minivans carry as many as seven passengers and, compared with most sport utility vehicles, cost less , get better gas mileage, allow passengers to get in and out more easily, and have a smoother ride. A. Minivans carry as many...

your thinking is quite clear.
http://www.towson.edu/ows/pro_antagree.htm this will give a good perspective about pronoun antecedent.
parallel structure is required for antecedent reference.

Its a clean A here.
whether or not - is wrong idiom. Whether this or that ..correct form.

will ..or verb+s changes the parallel structure and the tense usage too.
D.E and B,C eliminated because of these reasons.

so cold ..so reflective is the parallel structure here. only B and C prevail. C uses an or for the second clause which changes the meaning of the sentence.The second clause is a consequence basically. B the usage of 'it' is somewhat wrong.The sentence after that a semicolon should not have dependenc...

let the least number of people in a club = 2n
thus other clubs have - 2n+2, 2n+4 , ...2n+10 members each

adding all , 2n + 2n+2 + 2n+4 + ..+2n+10 = 66
gives n = 3

thus the number of members are 6,8,10,12,14,16

hence probability = 6/66 = 1/11