Problem statement: Answer the multiple-choice question.
Query: Which compound has a 11.783\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
[a] S=c1[nH]nc(Nc2ccccc2)s1
[b] COc1ccc(-c2c(C3=CCCCC3)oc3ccc(-c4ccc5c(c4)OCO5)cc23)cn1
[c] COC(=O)c1sc2nc(SCc3ccccc3C#N)n(N)c(=O)c2c1C
Answer: a. S=c1[nH]nc(Nc2ccccc2)s1
{#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#}
S=c1[nH]nc(Nc2ccccc2)s1
S=c1[nH]nc(Nc2ccccc2)s1
5-anilino-3H-1,3,4-thiadiazole-2-thione