Option (b) is the correct answer of this question.
Explanation:
Prime Meridian is located at 0° longitude.A prime meridian is the meridian (a longitude line) in a system of geographic coordinates in which longitude is defined as 0 ° is known as prime meridian.
In prime meridian spheroid are divided into two hemispheres by this great circle.
The Eastern Hemisphere and the Western Hemisphere can be named if one uses East and West directions from a specified primary meridian.
Prime meridians have to be arbitrarily defined on Earth. A marker like a crater is often used; other times a prime meridian is described by reference to another celestial object, or magnetic fields.
Unlike an equator defined by the rotation axis, the primary meridian is arbitrary.Various definitions for the Earth's prime meridian have been used or encouraged in different regions throughout history.
Ocean water is evaporating all the time and rising the temperature and humidity of the air so it forms rain and storms that are then carried by trade winds.
