Task: Answer the multiple choice question.
Query: Which compound has a 9.546\% 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, d, or e without using any additional words.
Options:
a.) CCCCn1c(N)c(N(CCOC)C(=O)c2ccco2)c(=O)[nH]c1=O
b.) O=[N+]([O-])c1cc(Cl)ccc1N1CCCC1
c.) C=Cc1ccc(Cn2nc(-c3ccccc3)ccc2=O)cc1
d.) Nc1ccc(C(=O)N2CCN(S(=O)(=O)c3ccc(Br)cc3)CC2)cc1[N+](=O)[O-]
e.) CCOC(=O)C1CCCN(c2c(NCC3CCCN3CC)c(=O)c2=O)C1
Answer: b. O=[N+]([O-])c1cc(Cl)ccc1N1CCCC1
{#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#}
O=[N+]([O-])c1cc(Cl)ccc1N1CCCC1
O=[N+]([O-])c1cc(Cl)ccc1N1CCCC1
1-(4-chloro-2-nitrophenyl)pyrrolidine