Which definition best matches the word comprehensive?

• A. Dealing with most or all aspects of a certain issue
• B. Thorough
• C. All-encompassing
• D. Extensive

Answer: (C)

Comprehensive means covering all or nearly all parts of a subject. The best fit here is all-encompassing, because it directly conveys the idea of including everything within the scope. Thorough describes depth and detail, which is related but focuses more on how carefully something is done rather than whether all parts are included. Extensive emphasizes breadth or amount but doesn’t inherently imply complete inclusion of every aspect. Dealing with most or all aspects is close, but it suggests breadth without guaranteeing every part is covered. In use, a comprehensive plan or study guide aims to cover the full range of relevant topics, which is exactly what all-encompassing communicates.