Problem statement: Answer the multiple-choice question.
Query: Which compound has a 9.325\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CCOC(=O)c1cc([N+](=O)[O-])sc1N
(b) O=C(c1ccc(Cl)s1)N1CCCC(CO)(CCc2ccccc2)C1
Answer: a. CCOC(=O)c1cc([N+](=O)[O-])sc1N
{#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#}
CCOC(=O)c1cc([N+](=O)[O-])sc1N
CCOC(=O)c1cc([N+](=O)[O-])sc1N
ethyl 2-amino-5-nitrothiophene-3-carboxylate