What is wrong with the following code segment?

Num $=1$

while Num $>0$:

Num $=$ Num $+1$

print$($Num$)$

a$.)$

Nothing is printed in the while loop.

b$.)$

The while loop is an infinite loop.

c$.)$

The print function should be indented.

d$.)$

The while expression should be evaluated with $<.$