Task: Answer the MCQ question.
Question: Which drug exhibits a 12.253\% 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 additional words.
Options:
a. O=[N+]([O-])c1ccc(OCCO)nc1
b. CCOc1ccc(NS(=O)(=O)c2ccc(C(=O)NCCN3CCOCC3)cc2)cc1
c. C=CCc1ccccc1OCC(CN1CCCCC1)OC(C)=O.Cl
Answer: a. O=[N+]([O-])c1ccc(OCCO)nc1
{#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=[N+]([O-])c1ccc(OCCO)nc1
O=[N+]([O-])c1ccc(OCCO)nc1
2-(5-nitropyridin-2-yl)oxyethanol