Task: Answer the multiple-choice question.
Query: Which compound has a 10.281\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
[a] CNC(=O)CN1C(=O)c2ccccc2S1(=O)=O
[b] O=C(O)c1ccccc1Nc1ccc([N+](=O)[O-])cc1
[c] CCCCn1c(N)c(N(CCOC)C(=O)CSCc2cccc(C)c2)c(=O)[nH]c1=O
[d] COC(=O)Cc1ccc(NC(=S)NNC(=O)c2ccccc2Br)cc1
Answer: b. O=C(O)c1ccccc1Nc1ccc([N+](=O)[O-])cc1
{#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(O)c1ccccc1Nc1ccc([N+](=O)[O-])cc1
O=C(O)c1ccccc1Nc1ccc([N+](=O)[O-])cc1
2-(4-nitroanilino)benzoic acid