I want to know the answer to the following question:
What did this literature help with that was written in Cyrillic?
All the background I'm provided with is that "This literature facilitated the conversion to Christianity of the Eastern Slavs and introduced them to rudimentary Greek philosophy, science, and historiography without the necessity of learning Greek (there were some merchants who did business with Greeks and likely had an understanding of contemporary business Greek).". Is that enough to answer the question?
Answer: yes