Modified the original question, option A was incorrect in the original one.
Because the Supreme Court has ruled that the prosecution in a job discrimination case must prove not only that the employer lied about the reasons for dismissal but also that those reasons were discriminatory, plaintiffs in such cases fear that they will have no higher court that they can appeal to when their cases are decided in lower courts.
(A) they can appeal to when their cases are
(B) to which to appeal after their cases have been
(C) for appealing if their case has been
(D) to which they can appeal if their case is
(E) that their cases can appeal, if they have been
OA after some discussions.
The trick is that the sentence refers to the plaintiffs, the initial clause is just filler.
So the meat of the sentence is, "Because the Supreme Court has ruled X, plaintiffs
in such cases fear that THEY will have no higher court blah blah"
Therefore, the correct option should be in plural form, C & D are out.
E says "that their cases can appeal" that's wrong. The cases are not appealing, the plaintiffs are..
A starts off on the correct note but ends with "when their cases are". In this case the use of "have been" is warranted since we are talking about something that will have an impact on the present