. The smallest planet in the solar system is
There are several methods for determining how "large" something is.
- The first is the mass of a thing (how much matter it contains),
- and the second is its volume (how much space it takes up).
Mercury is the smallest planet in terms of both mass and volume, with a diameter of 4,879 km and a mass 3.3010×1023 of kg.
It is approximately 20 times less heavy than Earth, and its diameter is roughly 212 times smaller. In fact, Mercury is closer in size to our Moon than to Earth.
Hence, the correct option is (C)i.e mercury.