A crest of the wave is the highest peak in the wave that shows the maximum displacement value. The intersection of the 3-meter and 2-meter waves results in amplitude of 1 meter. Thus, option D is correct.
The amplitude of the wave is the measurement of the wave from the still position towards the crest or the trough of the wave. It is estimated in meters.
The elevation of the wave is at 3, and the depression is at 2 meters when intersected, which results in an amplitude causing destructive interference. As 3 m is above the baseline and 2 m is below the baseline the resulting amplitude will be, 3 - 2 = 1 m.
Therefore, the resulting amplitude is 1 meter.
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