Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 8.490\% 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: COc1ccc2nc3c(nc2c1)CCCC3
b: CN(CC(=O)Nc1ccc(C#N)cc1)Cc1ccc(Cl)cc1
c: COc1cccc(/C=C/C(=O)OCC(=O)NCC2CCCO2)c1OC
Answer: a. COc1ccc2nc3c(nc2c1)CCCC3
{#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#}
COc1ccc2nc3c(nc2c1)CCCC3
COc1ccc2nc3c(nc2c1)CCCC3
7-methoxy-1,2,3,4-tetrahydrophenazine