Task: Answer the multiple choice question.
Query: Which drug has a 2.655\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) CCOC(=O)C1CCN(C(=O)c2ccc3c(SCC(=O)O)c4c(nc3c2)CCCC4)CC1
(b) O=C(OCC(=O)N1CCN(c2ccccc2)CC1)c1nc(Cl)ccc1Cl
(c) CC1CCCC(NC(=O)COC(=O)Cc2c[nH]c3ccccc23)C1C
(d) CN(C)S(=O)(=O)c1cccc2c1C(=O)c1ccccc1C2=O
Answer: b. O=C(OCC(=O)N1CCN(c2ccccc2)CC1)c1nc(Cl)ccc1Cl
{#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#}
O=C(OCC(=O)N1CCN(c2ccccc2)CC1)c1nc(Cl)ccc1Cl
O=C(OCC(=O)N1CCN(c2ccccc2)CC1)c1nc(Cl)ccc1Cl
[2-oxo-2-(4-phenylpiperazin-1-yl)ethyl] 3,6-dichloropyridine-2-carboxylate