Task: Answer the multiple choice question.
Question: Which compound exhibits a 20.470\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: COC(=O)c1ccc(Cn2cc(Cl)cn2)o1
b: COc1ccc(-c2nc(CN3CCN(c4ncnc5ccccc45)CC3)c(C)o2)c(OC)c1
c: O=C1CCCc2sccc2N1
Answer: a. COC(=O)c1ccc(Cn2cc(Cl)cn2)o1
{#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#}
COC(=O)c1ccc(Cn2cc(Cl)cn2)o1
COC(=O)c1ccc(Cn2cc(Cl)cn2)o1
methyl 5-[(4-chloropyrazol-1-yl)methyl]furan-2-carboxylate