You are writing a critique of the data analysis section of a qualitative research report. You see that researchers used Spradley's (1979) approach to data analysis, but some techniques are attributed to Giorgi (1985). Your comments will include the following: A. Qualitative researchers should use one approach to data collection and analysis consistently throughtout the study, B. Using one approach or several approaches makes very little difference to the overall quality of the analytical process, C. using two approaches to data analysis in one study indicates that the researchers are well-versed in qualitiave methods, D. The combined approaches strengthen the credibility of the study findings