Types of wave interactions include
a. all of the above.
b. diffraction.
c. reflection.
d. refraction.

The answer is A.) All of the above

All of these are interactions of waves. Here's why:

Diffraction is when a beam of light is spread out after passing through a narrow opening. Like when a door is cracked and you can see the light spread wider than the actual crack would allow or when a light shines through a small hole and lights up the inside of a box.

Reflection is when light bounces back off of something and is not absorbed by the object. The most obvious example would be a mirror. A mirror does not absorb light, but instead, reflects it.

Refraction is when lights basically bends because it is passing through two "interfaces" of different density. An example of this would be if you have a straw sitting in a glass of water at an angle and you look at the side of the glass, the straw looks like it is cut in half, but that is just the refraction of light due to the density change between the air and liquid.

IO hope this helped! Have an amazing day :))

It is d, all the other ones say incorrect answer .