Task: Answer the multiple choice question.
Question: Which drug exhibits a 10.418\% human ether-à-go-go related gene (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] O=C(Nc1ccccc1N1CCOCC1)c1ccc2ccccc2c1
[b] O=[N+]([O-])c1cccc(-c2ccn[nH]2)c1
[c] Cc1ccc2c(c1)C1CN(C)CCC1N2C(=S)NC(=O)c1ccc(Cl)cc1Cl
[d] CC1CCCN(Cc2nc3c(c(=O)n(C)c(=O)n3C)n2CC(N)=O)C1
Answer: b. O=[N+]([O-])c1cccc(-c2ccn[nH]2)c1
{#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-])c1cccc(-c2ccn[nH]2)c1
O=[N+]([O-])c1cccc(-c2ccn[nH]2)c1
[3-(1H-pyrazol-5-yl)phenyl]-oxido-oxoazanium