Task: Answer the MCQ question.
Query: Which compound exhibits a 8.330\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) C=CCN1C(=O)/C(=C/C(=O)O)S/C1=N/NC(=O)OC(C)(C)C
(b) CCOC(=O)c1cn(-c2c(Cl)cccc2Cl)c2cc(Cl)c([N+](=O)[O-])cc2c1=O
Answer: b. CCOC(=O)c1cn(-c2c(Cl)cccc2Cl)c2cc(Cl)c([N+](=O)[O-])cc2c1=O
{#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)c1cn(-c2c(Cl)cccc2Cl)c2cc(Cl)c([N+](=O)[O-])cc2c1=O
CCOC(=O)c1cn(-c2c(Cl)cccc2Cl)c2cc(Cl)c([N+](=O)[O-])cc2c1=O
ethyl 7-chloro-1-(2,6-dichlorophenyl)-6-nitro-4-oxoquinoline-3-carboxylate