Select the correct answer. Ali is creating a document on a system using his login credentials. His colleague needs to use his system to access documents. His colleague does so with his own credentials while Ali is still logged in. What type of OS allows this kind of operation? A. single-user/single-tasking B. single-user/multitasking C. multiuser/single-tasking D. multiuser/multitasking

Multiuser/Multitasking

Explanation:

The question will be answered using the following two points:

- The fact that the operating system allows Ali and his friend to be logged on at the same time is known as a multiuser operating system

- The fact that the operating system allows Ali's friend to access documents while Ali is still logged in is refer to as multitasking.

Combining these two, we can conclude that option D correctly answers the question.

solution:

the right option is a

to adding   a new row to a table we   have to do process last table cell and pressing tab.

this is the process to add new row in the cell:

* to add a row below the cell, click insert below in the rows and columns group.

thus this is the required right answer.