Answer: The correct answer is destructive interference.
Step-by-step explanation:
Interference is the phenomenon in which there is a superposition of the waves. If the amplitude of the resultant wave is more than the original wave then there will be constructive interference.
If the amplitude of the resultant wave is lower than the original wave then there will be destructive interference.
Suppose two waves collide and the temporary combined wave that results is smaller than the original waves.
Therefore, the correct option is b.