Musical sounds that seem stable, not needing to resolve, are called consonant. Thus, the correct answer is B.
Any tone having features like regulated pitch and timbre will be considered as musical sounds. This musical sounds play with the helps of instruments in different manner.
Consonant musical sounds are restful, no need to resolve it like dissonant. Dissonant is a combination of multiple tones, making sounds requires resolution.
Therefore, option B consonant is the appropriate answer.
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