Problem statement: Answer the multiple-choice question.
Query: Which compound has a 9.407\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a: CCn1c(CNC(=O)COc2ccc(C(C)C)cc2)nnc1SCC(=O)Nc1ccc(F)cc1
b: Cc1nnc(N)s1
c: O=C(CCC(=O)OCC(F)(F)C(F)F)NCc1ccccc1
Answer: b. Cc1nnc(N)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#}
5-methyl-1,3,4-thiadiazol-2-amine