Task: Answer the multiple choice question.
Question: Which compound exhibits a 13.194\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a.) O=C1NC(=S)N/C1=C/c1cc([N+](=O)[O-])ccc1O
b.) CNC(=O)c1c[nH]n2c(=O)c(Cc3ccccc3F)c(C)nc12
Answer: a. O=C1NC(=S)N/C1=C/c1cc([N+](=O)[O-])ccc1O
{#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=C1NC(=S)N/C1=C/c1cc([N+](=O)[O-])ccc1O
O=C1NC(=S)N/C1=C/c1cc([N+](=O)[O-])ccc1O
(5E)-5-[(2-hydroxy-5-nitrophenyl)methylidene]-2-sulfanylideneimidazolidin-4-one