I hope your inboxes were not too spammed...
Anyways, all of these questions are very poor.
The telescope question is just... very wrong. It's missing an article in each option, in front of "Hobby-Eberly", and again in front of "relatively", unless radius became radii.. but then the sentence wouldn't really make sense. So all of the options are grammatically incorrect.
The WSJ sentence needs to eliminate the comma after 'text', and needs to add a very before "the status quo." "Going independent" cannot be compared to "the status quo"; it's a verb vs a noun." That said, assuming those two problems were fixed, the answer is, as Swati said, "for whom", since whom is for objects and who is for subjects. In any prepositional phrase (of X / for X / etc...), X is an object of the preposition and can never take on a subject word.
Lastly, the University of Lisbon question again omits a necessary article in front of "brain's". Next, the way that the sentence is constructed, it looks as though the "is related to" modifies the false statements, and should thus be changed to "are related to." But that makes absolutely no sense, obviously, so all of them are just, very poor sentences.
I know you've probably been going through many materials and are trying to find some new question sources, but whichever one is spewing out these questions is not a good one. I think you should probably walk away from this source before their grammar starts to permeate your brain.
:) Good luck