We are working on an unstable system. When we try to run our sort on large arrays, sometimes the sorting algorithm will be forced to stop running in the middle of execution. (The array will be left in whatever state it was in at the time the algorithm stopped.) But we can start the algorithm over and run it again later. So we want to choose an algorithm that will make progress toward the goal even if it does not always finish executing. A good choice would be: sort.

d. local area network (lan)

explanation:

a local area network (lan) is a collection of computers it connected to one another or to a common connection medium.

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only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.