Task: Answer the multiple-choice question.
Query: Which compound has a 16.426\% 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] NC(=O)CN1C(=O)NC(c2ccccc2)(c2ccccc2)C1=O
[b] COc1ccccc1CN1C(=O)c2ccncc2C1=O
[c] O=C(Cc1cccs1)N1CCN(c2ccc(F)cc2)CC1
Answer: a. NC(=O)CN1C(=O)NC(c2ccccc2)(c2ccccc2)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#}
NC(=O)CN1C(=O)NC(c2ccccc2)(c2ccccc2)C1=O
NC(=O)CN1C(=O)NC(c2ccccc2)(c2ccccc2)C1=O
2-(2,5-dioxo-4,4-diphenylimidazolidin-1-yl)acetamide