One approach to studying the Earth is considering the complete system, rather than individual parts is known as holistic approach and is therefore denoted as option B.
This type of approach involves the study of a system as a whole and not according to the individual parts which it comprises of. This type of approach touches all the parts of the earth as a complete system.
This system is the most ideal due to its thoroughness in the analysis of the different parts which makes it more accurate. This is therefore the reason why holistic was chosen as the most appropriate choice.
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