?When two or more concurrent tasks depend on a single prior task, each of the concurrent tasks is called a(n) _____.

In the external version of mergesort, if we begin by performing 16 sorted runs with 1 block each, what is the next step?

a) 1 sorted run, 16 blocks each b) 2 sorted runs, 8 blocks each c) 4 sorted runs, 4 blocks each d) 8 sorted runs, 2 blocks each

Click the ____ check box in the warning dialog box if you don't want to be asked to confirm that you want to delete future layers.

A. No B. Confirmed C. Stop asking D. Don't show again