Task: Answer the multiple-choice question.
Query: Which compound exhibits a 13.750\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a) Cl.NCCc1nnc(SCc2ccccc2)o1
b) COc1ccc(-c2nn(-c3ccccc3)cc2C#N)cc1
Answer: a. Cl.NCCc1nnc(SCc2ccccc2)o1
{#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#}
2-(5-benzylsulfanyl-1,3,4-oxadiazol-2-yl)ethanamine;hydrochloride