Task: Answer the multiple choice question.
Query: Which compound exhibits a 0.339\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a Cc1ccccc1NNC(N)=S
b CCCCN(CC)CCNC(=O)c1cc2c(=O)n(CC)c3ccccc3c2s1
Answer: a. Cc1ccccc1NNC(N)=S
{#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#}
Cc1ccccc1NNC(N)=S
Cc1ccccc1NNC(N)=S
(2-methylanilino)thiourea