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Which statement accurately describes how electromagnetic wave are produced?

A.) Accelerating charged particles cause magnetic fields in a space to constantly change, thus producing electromagnetic waves.
B.) Constantly changing electric and magnetic fields cause electrically charged particles to vibrate or accelerate.
C.) A region in space produces magnetic force fields and causes electrically charged particles to accelerate through space.
D.) Magnetic fields in space cause electrically charged particles to accelerate through the vacuum of space causing radiation.