Hi getgyan
I do see your point. For the same reason, I request you to kindly read my posting in an another thread in this same forum (incidentally that is also yours)
< there-is-a-big-difference-between-government-agents-scanning-140347.htmlI quote my posting thereof
Please look at this note below in the given link.
https://www.thefreedictionary.com/whoThe relevant portion says this much about the use of ‘that and who’
Quote:
Some grammarians have argued that only who and not that should be used to introduce a restrictive relative clause that identifies a person. This restriction has no basis either in logic or in the usage of the best writers; it is entirely acceptable to write either the woman that wanted to talk to you or the woman who wanted to talk to you.
My comment on the above
Quote:
But it is not clear whether GMAT accepts this concept. If GMAT has no issue about using that for human being also, then we can refer to the agents as agents that, and not necessarily agents who.
So, now you may see why I preferred an answer choice that uses the neutral “that”, in the given circumstances. This is my view, of course, contradictable by one or two concrete examples from GMAT in which they have preferred not to use ‘that” in an ambiguous situation such as this.
_________________
Thank you Daagh for your time on GMAT Club and all your contributions! Thank you for everything you did!Your work will remain a great tribute to you here on GMAT Club!
-bb