Task: Answer the multiple-choice question.
Question: Which compound exhibits a 12.042\% 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) Cc1ccc(C(=O)NCC(=O)Nc2cccc(C(F)(F)F)c2)cc1
(b) CC(=O)Nc1ccc2c(c1)nc(CCN1CCN(c3ccccn3)CC1)n2C
Answer: b. CC(=O)Nc1ccc2c(c1)nc(CCN1CCN(c3ccccn3)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#}
CC(=O)Nc1ccc2c(c1)nc(CCN1CCN(c3ccccn3)CC1)n2C
CC(=O)Nc1ccc2c(c1)nc(CCN1CCN(c3ccccn3)CC1)n2C
N-[1-methyl-2-[2-(4-pyridin-2-ylpiperazin-1-yl)ethyl]benzimidazol-5-yl]acetamide