Task: Answer the multiple choice question.
Question: Which compound has a 2.101\% 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 COCC(=O)Nc1nnc(SCC(=O)NCc2cccs2)s1
b O=C(O)c1cccc(Nc2ccc([N+](=O)[O-])c3nonc23)c1
Answer: b. O=C(O)c1cccc(Nc2ccc([N+](=O)[O-])c3nonc23)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#}
3-[(4-nitro-2,1,3-benzoxadiazol-7-yl)amino]benzoic acid