Task: Answer the multiple choice question.
Question: Which drug has a 6.800\% 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) Cn1c(=O)c2c(nc(NCCO)n2CCc2ccccc2)n(C)c1=O
(b) CCOC(=O)N1CCN(C(=O)c2ccc([N+](=O)[O-])cc2Cl)CC1
Answer: b. CCOC(=O)N1CCN(C(=O)c2ccc([N+](=O)[O-])cc2Cl)CC1
{#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)N1CCN(C(=O)c2ccc([N+](=O)[O-])cc2Cl)CC1
CCOC(=O)N1CCN(C(=O)c2ccc([N+](=O)[O-])cc2Cl)CC1
[4-(2-chloro-4-nitrobenzoyl)piperazin-1-yl]-ethoxymethanone