Parents want to put children in coeducation schools, because as they mature, their social skills will improve, (so that guys get educated on hitting on girls, and girls learn to deal with guys )...Thus their has to refer to children.

(A) Child - their...do not match.
(C),a benefit.....it the assurance not to assure...to comes with ensure.
(D)Same as (C)
(E)Progressive tense (assuring) cannot be used here.

Check the meaning and then look whch is close to their.

The use of 'their' as a possessive for a singular pronoun is very common, but grammatically incorrect. People like to use it because it is gender neutral and is easier than writing "his or her" every single time.

you want an easy way out of this...??


you are unclear what "their" refers to... i don't your judgment.
According to gmat, a pronoun always refer to the noun of the primary clause..

You agree that " for parents" is not a primary clause right?? ( it doesn't have a verb) .. then look for clause that has a verb.. is it tough to find???

Secondly,
Try to identify the idiom..

a benefit of X is Y...
Y cant be an infinitive depicting action ..We need a noun here, so "the assurance" is fine!!! Chuck C,D, E

Now as you can see both A and B has "their" ..therefor just change the noun, B has plural noun "children" ...go for it!!!


I hope this helps.

P.S- once you find the error you shouldn't bother what "their" refers too, as both parents and children are plural so it doesnt matter as such. .. i hope you noticed that..

thanks.

Thanks guys.. and Thanks raunekk for explaining it well.