Ctrl, Shift and Alt are called_______keys.

Ctrl, Shift and Alt are called_______keys.A. Alphanumeric
B. Function
C. modifier
D. None of These

Modifier keys  = They modifies the action of another key when used together
for example to shutdown/restart our computer: ALT+F4
alphanumeric keys = Alphabates + Numeric
alpha means alphabates that include the letters A to Z/a to z.
and Numeric means numbers 0 through 9.
function keys = F-keys
they are F1 through F12. They have assigned special function by the operating system. Function keys are also used with Modifier keys
for example to shutdown/restart our computer: ALT+F4