Hey, can someone help me solve this question?
I marked only the C option as others can’t be justified.
Can someone help me justify the B option?
@gregmat
The evidence is in the last line “mistakes were frequently made.” But the question is mistakes about what? If you go to line number 7, it says that this tool is called “by the author.” So if a “mistake” is made with this tool, that means that certain books were erroneously attributed to certain authors who in fact did not write the book.