Problem statement: Answer the multiple-choice question.
Question: Which drug has a -1.996\% 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) C=CSc1sc(Cl)c(N2CCOCC2)c1[N+](=O)[O-]
(b) O=C(CCCN1C(=O)/C(=C\c2ccco2)SC1=S)Nc1ccc(O)cc1C(=O)O
(c) CCCCNS(=O)(=O)c1ccc(OC)c(Cl)c1Cl
(d) CNS(=O)(=O)c1cccc2cccnc12
Answer: c. CCCCNS(=O)(=O)c1ccc(OC)c(Cl)c1Cl
{#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#}
CCCCNS(=O)(=O)c1ccc(OC)c(Cl)c1Cl
CCCCNS(=O)(=O)c1ccc(OC)c(Cl)c1Cl
N-butyl-2,3-dichloro-4-methoxybenzenesulfonamide