Task: Answer the multiple choice question.
Question: Which drug exhibits a 10.841\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: CCOCCCNC(=O)C(c1ccc(Cl)cc1)N1CCN(C(=O)c2ccco2)CC1
b: CCCCn1c(N)c(-c2nc3ccccc3o2)c2c([N+](=O)[O-])nn(C)c(=O)c21
c: Cc1sc2nc(C)n(NC(=O)c3ccc(COc4cc(Cl)ccc4Cl)o3)c(=O)c2c1C
d: CC1CCC/C(=N\Nc2ccc(Cl)c(C(=O)O)c2)C1
Answer: b. CCCCn1c(N)c(-c2nc3ccccc3o2)c2c([N+](=O)[O-])nn(C)c(=O)c21
{#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#}
CCCCn1c(N)c(-c2nc3ccccc3o2)c2c([N+](=O)[O-])nn(C)c(=O)c21
CCCCn1c(N)c(-c2nc3ccccc3o2)c2c([N+](=O)[O-])nn(C)c(=O)c21
2-amino-3-(1,3-benzoxazol-2-yl)-1-butyl-6-methyl-4-nitropyrrolo[2,3-d]pyridazin-7-one