Task: Answer the multiple-choice question.
Question: Which drug exhibits a 1.698\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a. CSc1nc(-c2ccccc2)c(C#N)c(=O)n1C
b. O=C1CCC(C(=O)N2CCOCC2)CN1Cc1cccc(C(F)(F)F)c1
c. CCC(=O)Nc1ccc(NC(=O)CSc2nnnn2CC)cc1C
Answer: a. CSc1nc(-c2ccccc2)c(C#N)c(=O)n1C
{#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#}
CSc1nc(-c2ccccc2)c(C#N)c(=O)n1C
CSc1nc(-c2ccccc2)c(C#N)c(=O)n1C
1-methyl-2-methylsulfanyl-6-oxo-4-phenylpyrimidine-5-carbonitrile