Final answer:
A) Part-to-Part. The ratio of 24 Rock CDs to 35 Country CDs represents a part-to-part relationship because it compares two categories of CDs directly to each other.
Step-by-step explanation:
The ratio of Rock CD's to Country CD's is 24 to 35. To determine if this is an example of a part-to-part relationship or a part-to-whole relationship, we need to understand the meanings of these terms.
In a part-to-part relationship, we compare the relationship between two parts or subsets of a whole. For example, if we were comparing the number of boys to the number of girls in a class, it would be a part-to-part relationship. However, in this case, we are comparing two different types of CD's, Rock and Country, so it does not represent a part-to-part relationship.
On the other hand, in a part-to-whole relationship, we compare the relationship between a part and the whole. In this case, the ratio of Rock CD's to Country CD's represents a part-to-whole relationship because we are comparing the ratio of Rock CD's (the part) to the total number of CD's, which includes both Rock and Country (the whole).
Therefore, the given ratio of Rock CD's to Country CD's is an example of a part-to-whole relationship.