Task: Answer the multiple choice question.
Query: Which drug exhibits a 1.975\% 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=C(N/N=C/c1ccco1)C1CC1(c1ccccc1)c1ccccc1
b.) CCOC(=O)c1c(Nc2ccccc2)sc(/C=C2\C=Nc3ccccc32)c1O
Answer: b. CCOC(=O)c1c(Nc2ccccc2)sc(/C=C2\C=Nc3ccccc32)c1O
{#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(Nc2ccccc2)sc(/C=C2\C=Nc3ccccc32)c1O
CCOC(=O)c1c(Nc2ccccc2)sc(/C=C2\C=Nc3ccccc32)c1O
ethyl 2-anilino-4-hydroxy-5-[(Z)-indol-3-ylidenemethyl]thiophene-3-carboxylate