An author's tone is his or her A. political philosophy.
B. educational background.
C. attitude toward the work.
D. purpose for writing the work.

c) attitude toward the work

Explanation:

we know that, volume of a rectangular prism is given by :

✿   {length × width × height}

given : the length of rectangular prism = 5.5

given : the width of rectangular prism = 6

given : the height of rectangular prism = 3

⇒ the volume of given rectangular prism = {5.5 × 6 × 3}

⇒ the volume of given rectangular prism = 99