Task: Answer the MCQ question.
Query: Which compound exhibits a 12.271\% 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) Nc1ncnc2c1ncn2CCN1CCCCC1
(b) Cc1c(-c2cccs2)[n+](=O)c2c(n1[O-])CCCCC2
(c) CC(=O)CC1(C)OC(N)=C(C#N)C1(C#N)C#N
Answer: b. Cc1c(-c2cccs2)[n+](=O)c2c(n1[O-])CCCCC2
{#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#}
Cc1c(-c2cccs2)[n+](=O)c2c(n1[O-])CCCCC2
Cc1c(-c2cccs2)[n+](=O)c2c(n1[O-])CCCCC2
2-methyl-1-oxido-3-thiophen-2-yl-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyrazin-4-ium 4-oxide