CAN SOMEONE HELP ME PLZ

Consider the following statements, then select one of the answers below: the signal() function shown below registers "sig_handler()" as the signal handler function for the sigkill signal, without the complexity of using when the sigkill signal is sent to a process running this code, by a user typing "kill -kill ", where the correct process id is used for to target the process, sig_handler() will be executed.

Which type of file can be used to import data into a spreadsheet?

Whats three fourths of 15(this is supposed to be in math but i clicked too fast)