Task: Answer the multiple choice question.
Query: Which compound exhibits a 17.531\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a Cn1c(=O)c2c(nc(Oc3cccc(O)c3)n2C)n(C)c1=O
b CC1CC(C#N)N(N(C)C)C1=C(C#N)C#N
Answer: b. CC1CC(C#N)N(N(C)C)C1=C(C#N)C#N
{#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#}
CC1CC(C#N)N(N(C)C)C1=C(C#N)C#N
CC1CC(C#N)N(N(C)C)C1=C(C#N)C#N
2-[5-cyano-1-(dimethylamino)-3-methylpyrrolidin-2-ylidene]propanedinitrile