Researchers Study 54 Nonsmoking Women with Stage IV Non-Small Cell

Researchers study 54 nonsmoking women with stage IV non-small cell lung cancer, for the purpose of describing the women's progress in response to standard treatment, which all of them receive. Which of the following designs would be suitable for this study?

A) Comparative descriptive
B) Time-dimensional
C) Prospective cohort
D) Cross-sectional
E) Predictive correlational
F) Longitudinal
G) Simple descriptive