Task: Answer the multiple-choice question.
Query: Which compound has a 20.964% human ether-à-go-go related gene (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: COc1ccc(Cn2nnc(C(=O)Nc3ccc(F)cc3)c2N)cc1
b: CC1C2(C)OCC(C#N)(C(=N)O2)C1(C#N)C#N
c: Cc1cccc(CCNC(=O)Cn2ncc3c([nH]c4ccccc43)c2=O)c1
d: CN1C2CCC1CC(NC(=O)c1cc(Cl)cc3[nH]cnc13)C2
Answer: b. CC1C2(C)OCC(C#N)(C(=N)O2)C1(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_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#}
CC1C2(C)OCC(C#N)(C(=N)O2)C1(C#N)C#N
CC1C2(C)OCC(C#N)(C(=N)O2)C1(C#N)C#N
3-imino-1,7-dimethyl-2,6-dioxabicyclo[2.2.2]octane-4,8,8-tricarbonitrile