Task: Answer the multiple choice question.
Question: Which compound exhibits a -19.298\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a Cc1nc(SCC(=O)c2c(N)n(C3CC3)c(=O)[nH]c2=O)[nH]c(=O)c1CCO
b O=C(O)C(=O)O.O=[N+]([O-])c1ccc(N2CCN(Cc3ccc([N+](=O)[O-])o3)CC2)cc1
c CSCC[C@H](NC(=O)N1CCn2c1nc1ccccc12)C(=O)N1CCCCC1
d CCN1CCN(Cc2nc3ccc([N+](=O)[O-])cc3c(=O)n2-c2ccc(OC)cc2OC)CC1
Answer: d. CCN1CCN(Cc2nc3ccc([N+](=O)[O-])cc3c(=O)n2-c2ccc(OC)cc2OC)CC1
{#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#}
CCN1CCN(Cc2nc3ccc([N+](=O)[O-])cc3c(=O)n2-c2ccc(OC)cc2OC)CC1
CCN1CCN(Cc2nc3ccc([N+](=O)[O-])cc3c(=O)n2-c2ccc(OC)cc2OC)CC1
3-(2,4-dimethoxyphenyl)-2-[(4-ethylpiperazin-1-yl)methyl]-6-nitroquinazolin-4-one