Task: Answer the multiple-choice question.
Query: Which compound has a 21.099% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) CN(Cc1cn(C)nc1-c1ccc(Oc2ccccc2)cc1)Cc1cnc2ccccn12
b) O=C(Nc1nc2c(F)cc(F)cc2s1)c1ccc([N+](=O)[O-])o1
Answer: b. O=C(Nc1nc2c(F)cc(F)cc2s1)c1ccc([N+](=O)[O-])o1
{#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#}
O=C(Nc1nc2c(F)cc(F)cc2s1)c1ccc([N+](=O)[O-])o1
O=C(Nc1nc2c(F)cc(F)cc2s1)c1ccc([N+](=O)[O-])o1
N-(4,6-difluoro-1,3-benzothiazol-2-yl)-5-nitrofuran-2-carboxamide