Answer:
b
Explanation:
C and D have equivalent iterations
C: D:
99 990
90 900
81 810
72 720
63 630
54 540
45 450
36 360
27 270
18 180
9 90
Answer:
plug-in
Explanation:
A Plug-in is a software that provides additional functionalities to existing programs. The need for them stems from the fact that users might want additional features or functions that were not available in the original program. Digital audio, video, and web browsers use plug-ins to update the already existing programs or to display audio/video through a media file. Plug-ins save the users of the stress of having to wait till a new product with the functionality that they want is produced.