Task: Answer the multiple-choice question.
Query: Which drug has a 1.654\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a CCNCc1cc([N+](=O)[O-])ccc1OCC.Cl
b CCC1(C)Cc2ccccc2-c2nc(NCCCO)n(C)c(=O)c21
c CS(=O)(=O)c1cnc2c(S(=O)(=O)c3ccccc3)cnn2c1N
d C=CCn1c(O)c(/C=C2\C=Nc3ccccc32)c(=O)[nH]c1=O
Answer: a. CCNCc1cc([N+](=O)[O-])ccc1OCC.Cl
{#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#}
CCNCc1cc([N+](=O)[O-])ccc1OCC.Cl
CCNCc1cc([N+](=O)[O-])ccc1OCC.Cl
N-[(2-ethoxy-5-nitrophenyl)methyl]ethanamine;hydrochloride