Task: Answer the multiple choice question.
Query: Which compound exhibits a 3.974% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a. O=C(CCC(=O)OCC(=O)c1cccc([N+](=O)[O-])c1)Nc1cccc(Cl)c1Cl
b. Nc1nnc(SCC(=O)OCC(=O)NC23CC4CC(CC(C4)C2)C3)s1
c. COc1ccccc1-c1noc2ncnc(Nc3ccccc3C)c12
d. COC(=O)c1ccc(Oc2c(C)oc3cc(OCc4cnn(-c5ccccc5)c4)ccc3c2=O)cc1
Answer: a. O=C(CCC(=O)OCC(=O)c1cccc([N+](=O)[O-])c1)Nc1cccc(Cl)c1Cl
{#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(CCC(=O)OCC(=O)c1cccc([N+](=O)[O-])c1)Nc1cccc(Cl)c1Cl
O=C(CCC(=O)OCC(=O)c1cccc([N+](=O)[O-])c1)Nc1cccc(Cl)c1Cl
[2-(3-nitrophenyl)-2-oxoethyl] 4-(2,3-dichloroanilino)-4-oxobutanoate