Can you name the voice types are are common in a choral octavo? What does each mean?

Though everyone's range is specific to their voice, most vocal ranges are categorized within 6 common voice types: Bass, Baritone, Tenor, Alto, Mezzo-Soprano, and Soprano. If you've been part of a choir before, you're probably pretty familiar with these ranges.

Explanation:

because of the importance of consistency in data collection. but we have to evaluate the resource or information, and not just accept what is posted online since information available on the internet is not regulated for quality or accuracy.