Task: Answer the multiple-choice question.
Question: Which compound exhibits a 3.526\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a O=C(CCN1C(=O)COc2ccccc21)N1CCCCC1
b CC(Oc1cc2oc(=O)c3c(c2cc1Cl)CCCC3)C(=O)NCCN1CCOCC1
c CCOc1ccccc1NC(=O)CC1NCCNC1=O
Answer: c. CCOc1ccccc1NC(=O)CC1NCCNC1=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#}
CCOc1ccccc1NC(=O)CC1NCCNC1=O
CCOc1ccccc1NC(=O)CC1NCCNC1=O
N-(2-ethoxyphenyl)-2-(3-oxopiperazin-2-yl)acetamide