Which of the following technologies can be used for background automation?
Options are:
a) The Click activity with the Simulate Click flag checked
b) The Full Text method of Screen Scraping
c) Type into activity with Send Window Messages flag checked
d) Data scraping
Option C is correct one.
The “Send Window Messages” option in the Type Into activity allows you to simulate keyboard input by sending messages directly to the target application’s window. It doesn’t require the application window to be in the foreground or focused, which makes it suitable for background automation.
Hope it helps!!
Correct option is C).
Hope it helps 
Hi @Abhoy_Kumar_Mondal
Option c is correct,
“Type into activity with Send Window Messages flag checked” is the correct option for background automation.
Hope it helps!!
ashokkarale