Task: Answer the MCQ question.
Query: Which compound exhibits a -8.898\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] O=C(Nc1ccn(Cc2ccccc2)n1)c1n[nH]c([N+](=O)[O-])c1Cl
[b] CCN(CC(=O)Nc1ccc2c(c1)OCCO2)S(=O)(=O)c1ccccc1
Answer: a. O=C(Nc1ccn(Cc2ccccc2)n1)c1n[nH]c([N+](=O)[O-])c1Cl
{#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=C(Nc1ccn(Cc2ccccc2)n1)c1n[nH]c([N+](=O)[O-])c1Cl
O=C(Nc1ccn(Cc2ccccc2)n1)c1n[nH]c([N+](=O)[O-])c1Cl
N-(1-benzylpyrazol-3-yl)-4-chloro-5-nitro-1H-pyrazole-3-carboxamide