Task: Answer the MCQ question.
Query: Which drug exhibits a -32.257% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
(a) O=C(c1cc([N+](=O)[O-])ccc1N1CCOCC1)N1CCN(c2ccccc2)CC1
(b) Cc1cc(C)n2nc(SCn3nnc4ccccc4c3=O)nc2n1
(c) COc1ccc(OC)c(-c2cc(C(F)(F)F)c3c(n2)sc2c(O)cc(=O)[nH]c23)c1
(d) CCC1=Nc2cc(C(=O)NCC3CCCO3)ccc2Sc2ccc(Br)cc21
(e) CN(C)C(CNc1ccc(S(C)(=O)=O)cc1[N+](=O)[O-])c1ccccc1
Answer: a. O=C(c1cc([N+](=O)[O-])ccc1N1CCOCC1)N1CCN(c2ccccc2)CC1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(c1cc([N+](=O)[O-])ccc1N1CCOCC1)N1CCN(c2ccccc2)CC1
O=C(c1cc([N+](=O)[O-])ccc1N1CCOCC1)N1CCN(c2ccccc2)CC1
(2-morpholin-4-yl-5-nitrophenyl)-(4-phenylpiperazin-1-yl)methanone