Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 0.867\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) CCCCCCCSc1cc(OC)c(CCNC)cc1OC.O=C(O)/C=C\C(=O)O
b) O=C(Nn1cnnc1)C12CC3CC(CC(C3)C1)C2
Answer: a. CCCCCCCSc1cc(OC)c(CCNC)cc1OC.O=C(O)/C=C\C(=O)O
{#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#}
(Z)-but-2-enedioic acid;2-(4-heptylsulfanyl-2,5-dimethoxyphenyl)-N-methylethanamine