Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 10.682\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
(a) O=c1c([N+](=O)[O-])cccn1Cc1cccc(Br)c1
(b) COC(=O)/C=C1\N/C(=N\c2nc(C)cc(C)n2)N(c2ccccc2)C1=O
(c) COc1cccc2[nH]c(C(=O)NC(C)c3ccccc3)cc12
(d) CCCCn1cc(S(=O)(=O)c2ccccc2)c(=O)c2cc(C)ccc21
Answer: a. O=c1c([N+](=O)[O-])cccn1Cc1cccc(Br)c1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__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_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=c1c([N+](=O)[O-])cccn1Cc1cccc(Br)c1
O=c1c([N+](=O)[O-])cccn1Cc1cccc(Br)c1
1-[(3-bromophenyl)methyl]-3-nitropyridin-2-one