What Is the Value of Using Qualitative Methods

What is the value of using qualitative methods?

A) They never introduce bias into the study and therefore are generalizable to almost all populations.
B) They allow the researcher to objectively identify and measure behaviour and physical processes (erection, vaginal lubrication, etc.) that occur during sexual activity.
C) They are able to account for subjective aspects of sexuality that are difficult to measure, such as a person's attitudes, beliefs, and emotions about sexuality.
D) They account for both the subjective and objective aspects of human sexuality and therefore provide the best analysis for research findings.