Task: Answer the multiple choice question.
Question: Which compound exhibits a 13.936\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) O=C(NCc1cccnc1)C(=O)c1c[nH]c2ccccc12
(b) CCCNC(=O)NC(C(=O)OC)C12CC3CC(CC(C3)C1)C2
Answer: a. O=C(NCc1cccnc1)C(=O)c1c[nH]c2ccccc12
{#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#}
O=C(NCc1cccnc1)C(=O)c1c[nH]c2ccccc12
O=C(NCc1cccnc1)C(=O)c1c[nH]c2ccccc12
2-(1H-indol-3-yl)-2-oxo-N-(pyridin-3-ylmethyl)acetamide