Task: Answer the multiple choice question.
Question: Which compound exhibits a -39.075% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCn1c2ccccc2c2nnc(SCCN3CCCCC3)nc21
b: Cc1ccc(S(=O)(=O)N2CCN(C(=O)CCn3cncn3)CC2)cc1C
Answer: a. CCn1c2ccccc2c2nnc(SCCN3CCCCC3)nc21
{#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#}
CCn1c2ccccc2c2nnc(SCCN3CCCCC3)nc21
CCn1c2ccccc2c2nnc(SCCN3CCCCC3)nc21
5-ethyl-3-(2-piperidin-1-ylethylsulfanyl)-[1,2,4]triazino[5,6-b]indole