Which of the following is true about the kinds of publishers

(A). Traditional publishing houses acquire books from authors and provide editorial assistance, marketing, and packaging. 

(B). Vanity Publishers Offer similar services as traditional publishers but authors must purchase these services. 

(C). Subsidy Publishers Produce textbooks, workbooks, and multimedia materials for schools and universities.

(D). Alternative Media Publishers Focus on e-books and audiobooks, catering to electronic readers and digital formats.