The following program is to validate user input with loops and exceptions. Users are expected type in real numbers $($not string$).$ What is the correct statement for the try clause.

users$\_$num $=$ None

while users$\_$num $==$ None:

try:

## Try clause is empty and you need to fill this line

except ValueError:

print$(\text{'}$You entered a non$-$numeric value. Try again.$\text{'})$

users$\_$num $=$ None

print$(\text{'}$Thanks for entering', users$\_$num$)$