Task: Answer the multiple-choice question.
Question: Which compound exhibits a 19.067% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
(a) O=c1nc(SCc2ccccc2Cl)nc(-c2ccc(Cl)cc2)[nH]1
(b) CCCCNC(=O)c1cc([N+](=O)[O-])[nH]n1
(c) COC(=O)c1sc(N2C(=O)c3oc4ccccc4c(=O)c3C2c2cccc(O)c2)nc1C
(d) Oc1ccc(/C=N/N2CCN(Cc3ccccc3)CC2)cc1
(e) Cc1ccc(-c2csc(N=C(N)N)n2)cc1
Answer: b. CCCCNC(=O)c1cc([N+](=O)[O-])[nH]n1
{#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#}
CCCCNC(=O)c1cc([N+](=O)[O-])[nH]n1
CCCCNC(=O)c1cc([N+](=O)[O-])[nH]n1
N-butyl-5-nitro-1H-pyrazole-3-carboxamide