Task: Answer the MCQ question.
Question: Which drug has a -19.982% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] CCN(Cc1ccccc1)c1ccc(/C=N/NC(=S)NC(C)C)cc1
[b] O=C(O)c1[nH]c2ccc([N+](=O)[O-])cc2c1-c1ccccc1
[c] CCN1C(=O)C(=O)N(CC(=O)c2[nH]c(C)c(C(C)=O)c2C)C1=O
Answer: b. O=C(O)c1[nH]c2ccc([N+](=O)[O-])cc2c1-c1ccccc1
{#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(O)c1[nH]c2ccc([N+](=O)[O-])cc2c1-c1ccccc1
O=C(O)c1[nH]c2ccc([N+](=O)[O-])cc2c1-c1ccccc1
5-nitro-3-phenyl-1H-indole-2-carboxylic acid