My opinion is the answers A and D. I would choose A if you can only choose one, though.
Here, you go drawn , in paint. Please note that you can simplify further more the circuit by removing any two not following each other.
Answer:
Spyware
Explanation:
Spyware is a type of program that is installed with or without your permission on your personal computers to collect information about users, their computer or browsing habits tracks each and everything that you do without your knowledge and send it to remote user.
Answer:
The answer to this question is given in the explanation section.
Explanation:
This is a type of software which show us data in tabular form. These software can easily store, analyze and organize data.
They are divided in rows and columns. They are mainly used for accounting and book keeping.
The commonly used spread sheet software in the market are MS Excel by Microsoft, Calc by libre office.