Question

Which of the following statements is TRUE?

A. Both light waves and sound waves are mechanical waves.
B. Both light waves and sound waves are electromagnetic waves.
C. Sound waves are electromagnetic waves and light waves are mechanical waves.
D. Light waves are electromagnetic waves and sound waves are mechanical waves

Answer 1

D. (The last one)

Hope this helps!

Answer 2

D. Light waves are electromagnetic and sound waves are mechanical waves.