Which of the Following Research Purposes Would Pertain to Quantitative

Which of the following research purposes would pertain to quantitative research?

A) The purpose of this study was to identify the stressors and coping strategies of adolescents after a major burn injury.
B) The purpose of our study was to establish correlations among panic disorder, bipolar disease, body piercing, and episodes of violence in college freshmen.
C) The purpose of this study was to determine the percentage of various types of surgery performed in five hospitals in the Atlanta, Georgia, region.
D) The purpose of this study was therefore to explore mothers' experiences with children who are termed "difficult" toddlers and preschoolers.
E) The purpose of this pilot study was to examine the effectiveness of a new, computer-based education module on nurses' first-attempt mastery of a specialized practice certification examination.