Which of the following statements about wave is not correct?

i. A wavefront is a line which contains all particles whose vibration are in phase.

ii. The direction of propagation of a wave is the link drawn parallel to the wavefront.

iii. A wavefront is a circle which is common to particles that are in the same state of disturbance

A. i only
B. ii only
C. i and ii only
D. i and iii only
E. ii and iii only

Correct Answer: Option E

E. ii and iii only