Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a -1.446\% 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: CCCCCn1c(CNC(=O)COC)nc2ccccc21
b: CCc1nc(N)c(C#N)c(-c2ccc(OC)c(OC)c2)c1C
Answer: a. CCCCCn1c(CNC(=O)COC)nc2ccccc21
{#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#}
CCCCCn1c(CNC(=O)COC)nc2ccccc21
CCCCCn1c(CNC(=O)COC)nc2ccccc21
2-methoxy-N-[(1-pentylbenzimidazol-2-yl)methyl]acetamide