Task: Answer the MCQ question.
Question: Which drug exhibits a 20.364\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
(a) O=C(CSc1cccc[n+]1[O-])N1CCc2ccccc21
(b) CCOC(=O)C1CCCc2c1[nH]c1c(C(=O)O)cccc21
(c) CN1CCN(Cc2nc3c(c(=O)n(C)c(=O)n3C)n2CCCc2ccccc2)CC1
(d) CCN(CC)C(=O)CSc1nnc(COc2ccccc2)n1N
(e) O=C(O)c1cn(Cc2ccccc2)c2ccc(Cl)cc2c1=O
Answer: a. O=C(CSc1cccc[n+]1[O-])N1CCc2ccccc21
{#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(CSc1cccc[n+]1[O-])N1CCc2ccccc21
O=C(CSc1cccc[n+]1[O-])N1CCc2ccccc21
1-(2,3-dihydroindol-1-yl)-2-(1-oxidopyridin-1-ium-2-yl)sulfanylethanone