Optimum pitch refers to the point at which: the voice "breaks", the voice is comfortable, the voice is pleasant or the voice becomes strident

The voice is comfortable.

Explanation:

Optimum pitch is the level of the voice when one is most comfortable to speak in. Different people have their own levels of pitch that they feel suitable at. But this is different from the normal pitch that people normally speak at. Normal pitch or habitual pitch is the automatic pitch that a person uses in talking, without any intended level of pitch.

dang did this test hmmm lemme think

b

the switch in narration increases the proximity of the narrator to the main character and the reader can perceive information only through the filter of a single character.