Example: Central Idea

Short Passage

Throughout history, the Great Wall of China served multiple crucial functions beyond military defense. While its formidable structure certainly deterred invasions and guarded the silk road, its builders also used it to control immigration and emigration, regulate trade, and collect taxes on goods. Moreover, its construction employed millions of people over various dynasties, demonstrating the immense logistical capabilities of ancient Chinese empires. The Wall’s enduring legacy is thus as much a symbol of economic control and administrative power as it is a monument to protection.

Question

Which statement best expresses the central idea of the passage?

A) The Great Wall’s primary purpose was to protect the Silk Road from invaders.

B) The Wall’s construction was a major feat, employing millions of ancient workers.

C) The main historical significance of the Great Wall lies in its diverse non-military and administrative roles.

D) The Great Wall is a famous, formidable monument that has survived for centuries.

Answer

C) The main historical significance of the Great Wall lies in its diverse non-military and administrative roles.

Tip

Option C is the only statement that encompasses the main argument presented throughout the passage. The author spends the majority of the text detailing functions beyond military defense (controlling immigration, regulating trade, collecting taxes, and symbolizing administrative power).