Task: Answer the multiple-choice question.
Query: Which compound exhibits a 0.099\% 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 CC(C)CNC(=S)NC1CCCC1
b Cc1ccc(COc2ccsc2-c2n[nH]c(=S)n2C)cc1
Answer: a. CC(C)CNC(=S)NC1CCCC1
{#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#}
CC(C)CNC(=S)NC1CCCC1
CC(C)CNC(=S)NC1CCCC1
1-cyclopentyl-3-(2-methylpropyl)thiourea