After July, anyone disposing of or servicing refrigerators must capture the chlorofluorocarbons in the refrigerant chemicals.

(A) anyone disposing of or servicing
Right

(B) those who dispose or service

subtle shift of focus тАУ the diktat mandated by - anyone disposing of or servicing must do something is MORE RESTRICTIVE than one that concerns itself simply with THOSE who dispose (it should be dispose of anyway) or service -

(C) anyone disposing of or who services
parallelism is at issue here as much as the focus shift as in B.

(D) the disposal or repair of

ok..letтАЩs be fair тАУ disposal or repair of refrigerators would be completely incapable of capturing anything тАУ much less CFCтАЩs.

(E) someone who disposes or repairs

Again erroneous construction due to reasons alluded to in B, C etc.

Hi Kira.
very interesting question and it was useful for me, as for non navite speaker.
let me share my findings
First of all, let's clarify the difference between dispose and dispose of
dispose means to expose, arrange
dispose of - one of the meaning is get rid of something, utilize something (that is the meaning required in our sentence)

A) anyone disposing of or servicing (the right form is dispose of )
B) those who dispose or service (changes the meaning, disposing it self is not dangerous and there is no need in chloroflouro carbons)
C) anyone disposing of or who services (parallelism prob.)
D) the disposal or repair of (lack of subject)
E) someone who disposes or repairs (b prob + someone who is redundant)

good luck
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There is a clear 3:2 split among the answer choices between "dispose of", which means to get rid of and "dispose", which means to arrange or to set.
Moreover, there is a parallelism issue in C.
The answer has to be A in that it correctly uses "dispose of" and resolves the parallelism issue.
+1 A.
Hope that helps.
-s
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"Those" is usually a pronoun on the GMAT (see the section on pronouns in our Topic of the Week on "that" -- "those" is just a plural demonstrative pronoun), and in this case, it has no referent.

To be fair, I'm not 100% sure that you couldn't use "those" by itself on the GMAT, but I've never seen it used that way in an official question. And I don't think that this one is an official question, so you should take it with a huge grain of salt. (Friendly reminder: please please include your sources whenever you post new questions on the verbal forum!)

And there are other problems with (B) anyway, as others have mentioned. But I don't recommend wasting much time on this question, unless somebody can confirm the source.
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Well, you've probably heard me say over and over that nothing will EVER be as good as official GMAT questions, as discussed in our beginner's guides to RC, CR, and SC. Whenever possible, stick with the official stuff -- the non-official questions will often leave room for debate in ways that would NEVER happen in official questions.

In terms of your score goals, though, everybody is different. Some people can roll out of bed, barely study anything at all, and get a 750. Some people can do every single official GMAT question and hundreds of LSAT questions, and still struggle to get a 650. Life is unfair. But official = good.

I hope this helps!
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what is different between you and other people ? if you do that 2 times and got above 780+. but other people do every OG and LSAT and cannot.