Task: Answer the multiple-choice question.
Query: Which compound exhibits a -1.826\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: CN1CCN(c2ccc([N+](=O)[O-])cc2NC(=O)c2ccco2)CC1
b: CCCCSc1nnc(-c2c[nH]c3ccccc23)n1C
c: CN1CCN(c2ccc([N+](=O)[O-])cc2NC(=O)c2cccs2)CC1
Answer: b. CCCCSc1nnc(-c2c[nH]c3ccccc23)n1C
{#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#}
CCCCSc1nnc(-c2c[nH]c3ccccc23)n1C
CCCCSc1nnc(-c2c[nH]c3ccccc23)n1C
3-(5-butylsulfanyl-4-methyl-1,2,4-triazol-3-yl)-1H-indole