Task: Answer the multiple choice question.
Query: Which drug exhibits a 8.546\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) C=CCn1c([O-])c(C(C)=O)c(=O)[nH]c1=O.C[NH+](C)C
(b) COc1ccc2oc(C(=O)OCC(=O)Nc3cc(S(=O)(=O)N4CCOCC4)ccc3C)c(C)c2c1
Answer: a. C=CCn1c([O-])c(C(C)=O)c(=O)[nH]c1=O.C[NH+](C)C
{#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#}
C=CCn1c([O-])c(C(C)=O)c(=O)[nH]c1=O.C[NH+](C)C
C=CCn1c([O-])c(C(C)=O)c(=O)[nH]c1=O.C[NH+](C)C
5-acetyl-2,6-dioxo-3-prop-2-enylpyrimidin-4-olate;trimethylazanium