Task: Answer the multiple choice question.
Query: Which drug has a 3.833\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a. O=C(NNS(=O)(=O)c1ccc(Cl)cc1)c1sccc1-n1cccc1
b. O=C1C2C3C=CC(C3)C2C(=O)N1Nc1ccc([N+](=O)[O-])cc1[N+](=O)[O-]
c. CSc1ncccc1C(=O)N1CCN(S(=O)(=O)c2ccc(F)cc2)CC1
Answer: a. O=C(NNS(=O)(=O)c1ccc(Cl)cc1)c1sccc1-n1cccc1
{#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=C(NNS(=O)(=O)c1ccc(Cl)cc1)c1sccc1-n1cccc1
O=C(NNS(=O)(=O)c1ccc(Cl)cc1)c1sccc1-n1cccc1
N'-(4-chlorophenyl)sulfonyl-3-pyrrol-1-ylthiophene-2-carbohydrazide