So proper nouns (like EPUB, PDF, Know The Score) should be skipped. However, in the term "EPUB and PDF Format", "EPUB" and "PDF" are acronyms, but perhaps the term is "EPUB and PDF Format", where "Format" is a common term. So maybe the part "Format" is what needs to be converted. But "Format" here is part of a term that includes proper nouns. Hmm.
Looking at the first sentence: "If you’re not sure whether to download ‘Know The Score’ in EPUB or PDF format, here’s a brief explanation of the differences between the two:" Know The Score by Kylie Kent EPUB PDF
I need to make sure that each word is replaced with three valid options. Some words might have repeated options, but that's acceptable. Also, check that technical terms like EPUB and PDF are not altered. Proper nouns like the book title and author's name must remain unchanged. Let me go through each line again to confirm substitutions and structure the options correctly within b. So proper nouns (like EPUB, PDF, Know The