Answer: c Europeans colonized territories previously controlled by the Mughal and Ottoman empires.
Step-by-step explanation:
In the 18th century, the power of the great empires of the Ottomans and the Mughals started to decline and internal strife and nationalistic feelings amongst the various ethnicities began to fragment the empire.
The Mughals lost control in Afghanistan and starting mid 18th century came under increased pressure from the British East India Company until they were reduced to mere puppets of the British. The empire ended with the exile of the last emperor to Burma.
The Ottomans were not faring as bad as the Mughals but still came under pressure especially in their European territories. Wars against the Austrians and the Russians led to loss of areas such as Hungary and Transylvania. Further losses would occur in the 19th century.