Task: Answer the multiple choice question.
Question: Which drug exhibits a 0.453\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) O=C(COC(=O)c1c2c(nc3ccccc13)CCCC2)Nc1ccc2c(c1)OCO2
(b) COc1ccc(NC(=O)CCC(=O)c2ccc(C(C)C)cc2)cc1
(c) O=C(C1=C[C@@H](c2coc3ccccc3c2=O)C[C@@H](OCCCCO)O1)N1CCN(Cc2ccccc2)CC1
Answer: c. O=C(C1=C[C@@H](c2coc3ccccc3c2=O)C[C@@H](OCCCCO)O1)N1CCN(Cc2ccccc2)CC1
{#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#}
3-[(2S,4S)-6-(4-benzylpiperazine-1-carbonyl)-2-(4-hydroxybutoxy)-3,4-dihydro-2H-pyran-4-yl]chromen-4-one