When did the last Ice Age on earth take place?

Correct option is C

The correct answer is: (c), Pleistocene period
The Pleistocene epoch, commonly referred to as the Ice Age, lasted from about 2.6 million years ago to approximately 11,700 years ago. It is characterized by repeated glacial and interglacial periods, during which large ice sheets covered much of the Earth's surface. These glaciations had a significant impact on the Earth's climate, geography, and ecosystems. The Pleistocene epoch saw the emergence of iconic megafauna such as mammoths, mastodons, and saber-toothed cats, which adapted to the cold, harsh conditions of the Ice Age.
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Pliocene period:
The Pliocene epoch occurred from approximately 5.3 million to 2.6 million years ago. It was characterized by warmer global temperatures and a reduction in polar ice caps compared to the present day. However, it was not marked by the extensive glaciations associated with the Ice Ages.
Miocene period:
The Miocene epoch occurred from approximately 23 million to 5.3 million years ago. It was a period of significant geological and climatic change, but it predates the major glaciations of the Pleistocene Ice Age.
Silurian period:
The Silurian period occurred from approximately 443 million to 419 million years ago. It was characterized by the diversification of marine life, including the emergence of early fish and the proliferation of coral reefs. However, it occurred long before the Pleistocene Ice Age.