<p>Could you please provide detailed explanations of which answers are correct, why correct and in what why other choices are wrong. Please help me out</p>
<ol>
<li><p>A(Those who) defend sequoia trees B(from) loggers C(justified) D(doing so) on the grounds that such trees are irreplaceable. E(No error) </p></li>
<li><p>A(Opposite to) most people I know, Annie, a good photographer B(herself), actually C(enjoys seeing) the photographs that her friends take D(on their) vacations. E(No error)</p></li>
<li><p>The name "transferware" (comes from a nineteenth-century technique for which) a pattern is engraved onto a copper roll, printed on tissue paper, and transferred onto earthenware dishes.
(A)comes from a nineteenth-century technique for which
(B)comes from a nineteenth-century technique according to which
(C)comes from a nineteenth-century technique whereby
(D)is a nineteenth-century technique wherein
(E)means it is a nineteenth-century technique by which</p></li>
<li><p>New York state has passed a law requiring that (all legal contracts be written) in simple, understandable English
(A)all legal contracts be written
(B)all legal contracts being written
(C)all legal contracts have to be written
(D)the writing of all legal contracts is
(E)when writing legal contracts, it should be</p></li>
<li><p>The Arts and Crafts movement at the turn of the twentieth (century was a revolt against the uniformity of objects mass-produced) by the factories of the industrial revolution.
(A)century was a revolt against the uniformity of objects mass-produced
(B)century revolted against objects that were mass-produced and uniform
(C)century, being a revolt against uniform, mass-produced objects
(D)century was revolting against mass-produced, uniform objects
(E)century has revolted against uniformity in mass-producing objects</p></li>
<li><p>Recently trolleys have been brought back A(to solve) the B(problems of) congestion C(caused by) the automobile, the very vehicle D(that causes) the trolley's demise years ago. E(No error)</p></li>
</ol>
<p>additional grammar questions:
use of comma and conjunctions to connect-independent clause-independent clause, dep-independent clause and other way around.
difference in definition and use of which and that</p>