The correct answer is: C. Variables
A variable is a characteristic that can take on different values. For example, the height of a person is a variable, because it can be different for different people. Variables are often used in research to study how different factors affect an outcome. For example, a researcher might study how the height of a person affects their risk of developing a certain disease.
Qualitative measures are used to describe something, but they cannot be measured. For example, the color of a person’s eyes is a qualitative measure. It cannot be measured in any way, but it can be described as being blue, green, brown, etc.
Data is information that has been collected and organized. Data can be qualitative or quantitative. Qualitative data is data that cannot be measured, such as the color of a person’s eyes. Quantitative data is data that can be measured, such as the height of a person.
None of the above is not the correct answer.