What Are the Two Categories of Problems to Look for During

Multiple Choice

What are the two categories of problems to look for during the proofreading stage?

A) Errors in audience analysis and undetected mistakes from the writing,design,and layout stages
B) Undetected mistakes from the writing,design,and layout stages and confusion over project goals
C) Undetected mistakes from the writing,design,and layout stages and mistakes that crept in during production
D) Mistakes that crept in during production and poor choices regarding distribution
E) Network and app incompatibility