Read the following paragraph and answer the question. Give ONLY the answer, no other words or explanation.

For example:

Answer: <most likely answer, as short as possible>.

Paragraph: 
24.2 Production of Electromagnetic Waves • Electromagnetic waves are created by oscillating charges (which radiate whenever accelerated) and have the same frequency as the oscillation. • Since the electric and magnetic fields in most electromagnetic waves are perpendicular to the direction in which the wave moves, it is ordinarily a transverse wave. • The strengths of the electric and magnetic parts of the wave are related by.


Question: What are  electromagnetic waves created by?
oscillating charges
Oscillating charges.