Task: Answer the multiple-choice question.
Question: Which drug exhibits a 16.137\% 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 other words.
Options:
(a) CCOC(=O)N1CCN(C(=O)c2ccccc2NC(=O)c2ccc(Br)cc2)CC1
(b) Cc1ccc(S(=O)(=O)N2CCCCC2)cc1C(=O)NCc1ccncc1
(c) COc1ccnc(NCc2ccc(Cl)cc2)c1C#N
(d) Cc1sc2ncn(CC(=O)NCc3ccccn3)c(=O)c2c1S(=O)(=O)N1CCOCC1
Answer: c. COc1ccnc(NCc2ccc(Cl)cc2)c1C#N
{#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#}
COc1ccnc(NCc2ccc(Cl)cc2)c1C#N
COc1ccnc(NCc2ccc(Cl)cc2)c1C#N
2-[(4-chlorophenyl)methylamino]-4-methoxypyridine-3-carbonitrile