I know this question is from 2017 but I am doing this for anyone else that is looking for a answer. The answer should be C.) Allowed psychology to be considered a science.
Answer:
The waves are traveling in a speed of
v=1.20 m/s
Explanation:
The fisherman see a wave at 6m apart so that's the wavelength

Now the period is the time between two successive waves so
The velocity of the waves is describe by:




Answer:
He should go and open his account
Explanation:
I think it should be a cold
A because it doesn't have properties of transverse waves or longitudinal.