Task: Answer the multiple-choice question.
Question: Which compound exhibits a 18.024\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) Cc1cc([N+](=O)[O-])nn1CCCC(=O)Nc1cccc(Cl)c1Cl
(b) CC(O)C(Nc1ncc([N+](=O)[O-])cc1[N+](=O)[O-])C(=O)O
(c) CC(C)C(=O)Nc1ccc(C(=O)Nc2nnc(C(C)C)s2)cc1
Answer: b. CC(O)C(Nc1ncc([N+](=O)[O-])cc1[N+](=O)[O-])C(=O)O
{#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)C(Nc1ncc([N+](=O)[O-])cc1[N+](=O)[O-])C(=O)O
CC(O)C(Nc1ncc([N+](=O)[O-])cc1[N+](=O)[O-])C(=O)O
2-[(3,5-dinitropyridin-2-yl)amino]-3-hydroxybutanoic acid