Bunuel
Due to ongoing instability in the real estate market, many people
that might at one time have bought homes as young adults are choosing to forgo such purchases in favor of living in rented accommodations.
(A) that might at one time have bought homes as young adults
(B) that as young adults might once have bought homes
(C) who might once have bought homes in young adulthood
(D) who in young adulthood might have at one time bought homes
(E) who, when they were young adults, might at one time have bought homes
IMO, the answer should be C
(A) that might at one time have bought homes as young adults
'that' should not be used with people
(B) that as young adults might once have bought homes
'that' should not be used with people
(C) who might once have bought homes in young adulthood
clear and with no mistakes.
(D) who in young adulthood might have at one time bought homes
contender, but not as concise as D
(E) who, when they were young adults, might at one time have bought homes
awkward