Task: Answer the multiple-choice question.
Question: Which drug exhibits a 14.380\% 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) CCCC(=O)NCCc1nc2cc([N+](=O)[O-])ccc2n1C
b) COc1ccc(C2=NCCNC(C(F)(F)F)=C2)cc1
Answer: a. CCCC(=O)NCCc1nc2cc([N+](=O)[O-])ccc2n1C
{#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#}
CCCC(=O)NCCc1nc2cc([N+](=O)[O-])ccc2n1C
CCCC(=O)NCCc1nc2cc([N+](=O)[O-])ccc2n1C
[2-[2-(butanoylamino)ethyl]-1-methylbenzimidazol-5-yl]-oxido-oxoazanium