Task: Answer the multiple-choice question.
Query: Which compound exhibits a -0.223\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] COc1ccccc1NC(=O)c1cn(CCC#N)nc1-c1cccc(Cl)c1
[b] COC(=O)CCCC1=CC2=CC(=O)C(C)(OC(=O)c3ccco3)C(=O)C2=CO1
[c] O=C([O-])c1cc([N+](=O)[O-])ccc1Nc1ccccc1.[Na+]
Answer: b. COC(=O)CCCC1=CC2=CC(=O)C(C)(OC(=O)c3ccco3)C(=O)C2=CO1
{#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)CCCC1=CC2=CC(=O)C(C)(OC(=O)c3ccco3)C(=O)C2=CO1
COC(=O)CCCC1=CC2=CC(=O)C(C)(OC(=O)c3ccco3)C(=O)C2=CO1
[3-(4-methoxy-4-oxobutyl)-7-methyl-6,8-dioxoisochromen-7-yl] furan-2-carboxylate