Answer :
Transverse waves travel on a direction that is perpendicular to the motion of the particles (or whatever medium is waving) So the particles must be moving east to west, which is transverse to the north-south motion of the wave
Answer : The correct option is, Their direction of motion is east and west.
Explanation :
There are two types of waves :
Longitudinal waves : It is defined as the waves in which the particles of the medium move in the direction of the wave.
Transverse wave : It is defined as the waves in which the particles of the medium travel perpendicularly to the direction of the wave.
When a transverse wave is traveling from north to south then the direction of motion of the wave particle will be perpendicular to north-south direction which is east-west direction.
Hence, the correct option is, Their direction of motion is east and west.