A Boolean expression is evaluated within every while loop to determine whether the loop body will execute.

Each table column in Excel must have a unique name

Indicate whether the statement is true or false

If the host on a network has the address 172.16.66.50/21, what is the subnet ID to which this host belongs?

A) 172.16.48.0 B) 172.16.56.0 C) 172.16.64.0 D) 172.16.72.0