cj708965 cj708965 09-09-2021 Computers and Technology contestada which statement is true about OS types? a. single-user/single-tasking OS is the most commonly used modern OS b.multiple users cannot run a single task at the same time on any type of OS c. real-time OSes are a subtype of single-user/single-tasking OS d.multi users OSes cannot support multitasking