Problem statement: Answer the MCQ question.
Query: Which drug has a 13.831\% 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, c, or d without using any additional words.
Options:
a: Cc1cc(C)c2c(=O)[nH]c(SCC(=O)Nc3ccc(Br)cc3)nc2n1
b: CCN1CCc2ccccc2C1
c: Cc1occc1-c1nnc(SCC(=O)NC(C)(C)C)n1C(C)c1ccccc1
d: CN(C)CC/C=C1\c2ccccc2CSc2ccccc21.Cl
Answer: b. CCN1CCc2ccccc2C1
{#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#}
CCN1CCc2ccccc2C1
CCN1CCc2ccccc2C1
2-ethyl-3,4-dihydro-1H-isoquinoline