The answer : B 4 is the value of the month that will be displayed on the web page
<span>The kill -9 2129, kill -s KILL 2129, or kill -KILL 2129 commands</span>
Gamma rays are not used for communication.
-- We have no safe way to generate them.
-- We have no cheap way to detect them.
-- We have no way to impress information on them (modulate them).
-- They're dangerous.
Otherwise they're ideal for communication.
Answer = GUI (Graphical User Interface)
