In the context of fluid dynamics, interference refers to

o

a. the results of two waves meeting

o

b. anything that changes the course of a wave

c. the consequences of waves hitting the shore

o

d. the effect of different mediums of waves interacting

Option A

Explanation:

When two water wave’s interference, they superimpose on each other (after originating from a common point) there by producing bigger water waves or a smaller water waves. Thus interference can be of two types a) constructive and b) destructive. However, this concept applies exactly the same way for other wave forms such as sound waves etc.  

Hence, option A is correct

b.