Problem statement: Answer the multiple-choice question.
Query: Which drug has a 7.393\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] O=C(NNC1=Nc2cc([N+](=O)[O-])ccc2OC1)c1ccccc1Cl
[b] COc1ccc(Cl)cc1N(CC(=O)NC(C(C)C)C(C)C)S(C)(=O)=O
Answer: a. O=C(NNC1=Nc2cc([N+](=O)[O-])ccc2OC1)c1ccccc1Cl
{#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(NNC1=Nc2cc([N+](=O)[O-])ccc2OC1)c1ccccc1Cl
O=C(NNC1=Nc2cc([N+](=O)[O-])ccc2OC1)c1ccccc1Cl
[3-[2-(2-chlorobenzoyl)hydrazinyl]-2H-1,4-benzoxazin-6-yl]-oxido-oxoazanium