Task: Answer the multiple choice question.
Question: Which drug exhibits a 6.802\% 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 additional words.
Options:
[a] CCc1ccccc1NC1Nc2cc(C)nn2S1
[b] O=C(Cn1ncc2c1-c1ccccc1OC2)Nc1ccc(S(=O)(=O)N2CCCCC2)cc1
Answer: a. CCc1ccccc1NC1Nc2cc(C)nn2S1
{#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#}
CCc1ccccc1NC1Nc2cc(C)nn2S1
CCc1ccccc1NC1Nc2cc(C)nn2S1
N-(2-ethylphenyl)-6-methyl-1,2-dihydropyrazolo[1,5-b][1,2,4]thiadiazol-2-amine