Task: Answer the multiple choice question.
Question: Which compound exhibits a -1.891% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCCC1N2CC3([N+](=O)[O-])CN1CC([N+](=O)[O-])(C2)C3(C)C
b: Cc1cccc(C)c1OCC1CNC(=O)O1
Answer: a. CCCC1N2CC3([N+](=O)[O-])CN1CC([N+](=O)[O-])(C2)C3(C)C
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CCCC1N2CC3([N+](=O)[O-])CN1CC([N+](=O)[O-])(C2)C3(C)C
CCCC1N2CC3([N+](=O)[O-])CN1CC([N+](=O)[O-])(C2)C3(C)C
6,6-dimethyl-5,7-dinitro-2-propyl-1,3-diazatricyclo[3.3.1.13,7]decane