Task: Answer the multiple-choice question.
Query: Which compound exhibits a 5.679% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] CCOC(=O)c1sc(NC(=O)c2c(C)nn(Cc3ccccc3)c2C)cc1C
[b] C=Cn1nc(C)c2ccccc2c1=O
[c] C#CC(=O)N(c1cc(OC)ccc1OC)C(C(=O)NC1CCCC1)c1cccs1
Answer: b. C=Cn1nc(C)c2ccccc2c1=O
{#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#}
C=Cn1nc(C)c2ccccc2c1=O
C=Cn1nc(C)c2ccccc2c1=O
2-ethenyl-4-methylphthalazin-1-one