Task: Answer the multiple-choice question.
Query: Which drug exhibits a 22.894% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
(a) CCCCOc1ccc(-c2cn3ccccc3n2)cc1[N+](=O)[O-]
(b) Cc1ccc(C)c(N2CCN(CCCNC(=O)Cn3cccc3C(=O)c3ccccc3C)CC2)c1
(c) CC(=O)c1ccc2c(c1)C1C=CCC1C(c1ccc(S(=O)(=O)N3CCOCC3)cc1)N2
(d) COc1cccc(-c2nc(C(N)=O)c3[nH]c(=O)n(-c4cccc(Cl)c4)c3n2)c1OC
Answer: a. CCCCOc1ccc(-c2cn3ccccc3n2)cc1[N+](=O)[O-]
{#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#}
CCCCOc1ccc(-c2cn3ccccc3n2)cc1[N+](=O)[O-]
CCCCOc1ccc(-c2cn3ccccc3n2)cc1[N+](=O)[O-]
2-(4-butoxy-3-nitrophenyl)imidazo[1,2-a]pyridine