Task: Answer the multiple-choice question.
Query: Which drug exhibits a 12.997% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] Cc1ccc(NC(=O)c2cc3ccccc3oc2=N)cc1
[b] CCCc1nnc(NC(=O)Nc2ccccc2OC)s1
Answer: b. CCCc1nnc(NC(=O)Nc2ccccc2OC)s1
{#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#}
CCCc1nnc(NC(=O)Nc2ccccc2OC)s1
CCCc1nnc(NC(=O)Nc2ccccc2OC)s1
1-(2-methoxyphenyl)-3-(5-propyl-1,3,4-thiadiazol-2-yl)urea