Final answer:
The correct term for the total metric to get to the destination is a 'Cumulative Metric,' which sums the sequential measurements towards a destination. The correct option is A.
Step-by-step explanation:
The term that best describes the total metric to get to the destination, for example, 20 + 5 + 5 = 30, is Cumulative Metric.
This term is used to represent the sum of all measurements, such as distances, taken in sequence as you progress toward a destination. In mathematics, particularly in the context of distance and displacement as encountered in kinematics, the cumulative metric represents the total distance traveled.
It is important to note that this is different from displacement, which would be the straight-line measurement from the starting point to the final point, regardless of the individual segments that make up the journey.