Task: Answer the multiple choice question.
Question: Which compound exhibits a 13.329\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. CCOC(=O)c1ccccc1NC(=O)COc1ccccc1
b. CCCCSCc1nc2ccccn2c1Br
Answer: b. CCCCSCc1nc2ccccn2c1Br
{#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#}
CCCCSCc1nc2ccccn2c1Br
CCCCSCc1nc2ccccn2c1Br
3-bromo-2-(butylsulfanylmethyl)imidazo[1,2-a]pyridine