Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 9.909\% 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, or c without using any other words.
Options:
a. Br.CCn1c(=N)n(CC(=O)c2ccco2)c2ccccc21
b. CC(=O)Nc1ccc(NC(=O)CCCNC(=O)c2ccc(Cl)cc2)cc1
c. CN1CCN(c2cc(N3CCNCC3)ccc2[N+](=O)[O-])CC1
Answer: c. CN1CCN(c2cc(N3CCNCC3)ccc2[N+](=O)[O-])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#}
CN1CCN(c2cc(N3CCNCC3)ccc2[N+](=O)[O-])CC1
CN1CCN(c2cc(N3CCNCC3)ccc2[N+](=O)[O-])CC1
[2-(4-methylpiperazin-1-yl)-4-piperazin-1-ylphenyl]-oxido-oxoazanium