Task: Answer the MCQ question.
Query: Which drug has a 20.599\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: CC1CCCC(NC(=O)c2ccc3c(c2)OCCO3)C1C
b: CCC(=O)Nc1ccc2c(c1)nc(CCN1CCN(C)CC1)n2C
c: COC(=O)c1ccc(CC(=O)c2ccc(O)cc2O)o1
d: O=C(c1cccs1)N(Cc1ccco1)C1CCS(=O)(=O)C1
Answer: b. CCC(=O)Nc1ccc2c(c1)nc(CCN1CCN(C)CC1)n2C
{#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#}
CCC(=O)Nc1ccc2c(c1)nc(CCN1CCN(C)CC1)n2C
CCC(=O)Nc1ccc2c(c1)nc(CCN1CCN(C)CC1)n2C
N-[1-methyl-2-[2-(4-methylpiperazin-1-yl)ethyl]benzimidazol-5-yl]propanamide