When discussing discordant and harmonious sound waves, which statement is false? a. low ratios of the frequencies of the original and resultant waves indicate discordant waves. b. if the original waves combine to form irregular displacements of air, the sound will be discordant. c. knowing the frequencies of the original waves is useful in determining if the result will be discordant or harmonious. d. both types of waves are the result of component waves with different frequencies.