Why is https used in every link of a website?

The three logical operators used to write compound conditions are "and," "or," and "not." a: true b: false

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.

Plz ( which is an example of a good url?