Problem statement: Answer the multiple choice question.
Query: Which drug has a -18.998\% 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) COc1cc(/C=C2/C(=O)N(C)C(=S)N2C)ccc1OCc1cccc(F)c1
(b) CCCC(=O)Nc1ccc(-c2csc(-c3cccnc3)n2)cc1
(c) O=C1CC2(CCN(C(=O)c3ccccc3[N+](=O)[O-])CC2)Oc2ccccc21
(d) COc1ccc2nc3c(nc2c1)CCCC3
Answer: c. O=C1CC2(CCN(C(=O)c3ccccc3[N+](=O)[O-])CC2)Oc2ccccc21
{#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=C1CC2(CCN(C(=O)c3ccccc3[N+](=O)[O-])CC2)Oc2ccccc21
O=C1CC2(CCN(C(=O)c3ccccc3[N+](=O)[O-])CC2)Oc2ccccc21
1'-(2-nitrobenzoyl)spiro[3H-chromene-2,4'-piperidine]-4-one