Write function displayMenu to do the following

a$.$ Return type int

b$.$ Empty parameter list

c$.$ Declare a variable, data type integer, to store the user$$s menu

selection $($i$.$e$.$ choice$),$ initialized to $-1($i$.$e$.,$ INVALID$)$

d$.$ Write a loop to continue while variable choice is equal to $-1($i$.$e$.,$

INVALID$)$

i$.$ Write a series of printf statements to display the OS

Management Menu

ii$.$ Prompt the user to enter their menu selection, store the input

in variable choice

iii. Use decision making logic to validate the user$$s input is

between values $0$ and $1,$ inclusive; if not, set variable choice

equal to $-1($i$.$e$.,$ INVALID$)$

e$.$ Return variable choice