A Mecca in Saudi Arabia I believe?
Yes, technically it is true that Mosques are centers of Islamic worship, although it should be noted that Muslim people (who usually worship in the Islamic faith) can pray in a variety of places.
The Crimean War occurred in Europe, and did not involve China, ruling out A. The Nationalist Revolution was between the Nationalists and the Qing government, ruling out C. The Opium War was about Chinese trade, but wasn't necessarily a revolt against Europe, bc China was still independent, and didn't involve a secret society, ruling out D. The Boxer Rebellion, however, was an anti-European and anti-foreign revolt that did involve a secret society known as the Yihetuan, meaning B is correct.
Answer:
The concept of an age is a time of history united by historical or cultural influences. The modern age is an indicator of an age. A time frame marked by specific situations, incidents or characters. US history's Imperial Era, the Reagan Age.
Explanation: