The correct answer is: C. Pie : Slice

An arc is a part of the circumference of a circle. A pie is a round, flat, baked dish with a filling. A slice is a piece of pie.

A number is a mathematical object used to count, measure, and label. A count is the act of determining the number of items in a collection. A fraction is a part of a whole. A percentage is a number or rate that is expressed as a fraction of 100. A segment is a part of a line.

Here is a diagram that illustrates the relationship between an arc and a circle:

[Diagram of a circle with an arc]

The arc is the curved part of the circle, and the circle is the entire shape.

Here is a diagram that illustrates the relationship between a pie and a slice:

[Diagram of a pie with a slice]

The pie is the entire shape, and the slice is a part of the pie.