Task: Answer the multiple choice question.
Question: Which compound has a 15.554\% 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 other words.
Options:
a.) COc1ccc(OC)c(NC(=O)C2CCCN(S(=O)(=O)c3ccc(-n4cnnn4)cc3)C2)c1
b.) Cc1ccc2c3c([nH]c2c1C)-c1nonc1CC3
c.) COC(=O)C1CN(C(=O)C(C)Oc2ccc(C)c(C)c2)c2ccccc2O1
d.) CN(C)C(=O)C(NC(=O)c1ccccc1)=C(Cl)Cl
Answer: b. Cc1ccc2c3c([nH]c2c1C)-c1nonc1CC3
{#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#}
Cc1ccc2c3c([nH]c2c1C)-c1nonc1CC3
Cc1ccc2c3c([nH]c2c1C)-c1nonc1CC3
8,9-dimethyl-5,10-dihydro-4H-[1,2,5]oxadiazolo[3,4-a]carbazole