The term implies that the type’s data can be accessed only through methods.

a. abstract type library
b. advanced data type
c. abstract definition type
d. abstract data type

D. abstract data type

Explanation:

Abstract data type is a data type whose implementation is embedded behind an abstraction. They can be worked via methods and functions but their  specification is abstracted.

Lists and Stacks can be given as examples of abstract data types.

Abstract data type can be considered as the opposite of Concrete Data Type (CDT).

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.

i guess the correct option is letter a.

use contrasting font sizes, but the same font style