Task: Answer the multiple choice question.
Question: Which drug has a 6.832\% 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 or b without using any other words.
Options:
(a) O=[N+]([O-])c1cc(Br)c(O)c(C=Nc2ccc(N3CCOCC3)cc2)c1
(b) CCOC(=O)c1c(-c2cccc([N+](=O)[O-])c2)csc1NC(=O)CCCOc1ccccc1
Answer: b. CCOC(=O)c1c(-c2cccc([N+](=O)[O-])c2)csc1NC(=O)CCCOc1ccccc1
{#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)c1c(-c2cccc([N+](=O)[O-])c2)csc1NC(=O)CCCOc1ccccc1
CCOC(=O)c1c(-c2cccc([N+](=O)[O-])c2)csc1NC(=O)CCCOc1ccccc1
ethyl 4-(3-nitrophenyl)-2-(4-phenoxybutanoylamino)thiophene-3-carboxylate