Final answer:
Option A is an example of a comparative analysis, where a DRO FI 15 minute procedure is compared to a DRO FI 10 minute procedure for hand mouthing.
Step-by-step explanation:
A comparative analysis involves comparing two or more groups or conditions to determine differences or similarities. Out of the given options, option A is an example of a comparative analysis. In this case, a DRO FI 15 minute procedure is being compared to a DRO FI 10 minute procedure for hand mouthing.
Comparative analysis is commonly used in various fields, such as mathematics, social studies, biology, and psychology. It helps researchers and practitioners determine the effectiveness of different interventions, treatments, or programs.