Task: Answer the MCQ question.
Question: Which compound exhibits a 1.778\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
[a] Nc1ccc(C(=O)c2ccc3c(c2)OCCO3)cc1N
[b] CCCCC(=O)Nc1c(O)c2ccccc2[nH]c1=O
[c] CCc1ccccc1NC(=S)N(CCN1CCCCCC1)Cc1ccco1
Answer: b. CCCCC(=O)Nc1c(O)c2ccccc2[nH]c1=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#}
CCCCC(=O)Nc1c(O)c2ccccc2[nH]c1=O
CCCCC(=O)Nc1c(O)c2ccccc2[nH]c1=O
N-(4-hydroxy-2-oxo-1H-quinolin-3-yl)pentanamide