Task: Answer the MCQ question.
Query: Which drug has a 19.687\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: O=C(NC(=S)Nc1ccccc1Cl)c1csnn1
b: O=[N+]([O-])c1ccc(NCc2ccccc2)c2nonc12
c: CCN(CC)C(=S)SCC(=O)c1ccccc1
Answer: b. O=[N+]([O-])c1ccc(NCc2ccccc2)c2nonc12
{#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#}
N-benzyl-4-nitro-2,1,3-benzoxadiazol-7-amine