Answer:
Digital pen
Explanation:
It is digital pen because it is basically a pen for electronics which you can write your signature with it.
Answer:
A...In the Insert Function dialog box, click the function name to get a short description.
Explanation:
would be A
I think the answer is WAN (wide area network)
Front-end the part with which the user interacts.
usually people who write this are called layout designers what languages are used (Html, css, js)
Beck-end The northern part is the structure of the site due to which it works, this includes the DBMS, logic, etc. which languages will be used(python, php, java)
People who can do both are called: full stack developr