Task: Answer the multiple choice question.
Query: Which drug has a 10.389\% 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 additional words.
Options:
a. COc1ccc2nc(NC(=O)c3cccs3)sc2c1
b. COCCn1c(=O)[nH]c2cc(C(=O)NCCN3CCN(c4cccc(Cl)c4)CC3)ccc2c1=O
c. O=S1(=O)C=C(Sc2nc3ccccc3s2)c2ccccc21
d. COCCNC(=O)c1cc(OC)c(OC)cc1[N+](=O)[O-]
Answer: d. COCCNC(=O)c1cc(OC)c(OC)cc1[N+](=O)[O-]
{#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#}
COCCNC(=O)c1cc(OC)c(OC)cc1[N+](=O)[O-]
COCCNC(=O)c1cc(OC)c(OC)cc1[N+](=O)[O-]
4,5-dimethoxy-N-(2-methoxyethyl)-2-nitrobenzamide