I found the same question on chegg but I dont know if the answer is right.

Problem 11: Consider the following C skeletal program. : void main() { int x,y; void sub() { int x,b; while (-) { int b; b++; ... // While loop statements ... //Other sub) statements List the variables along with the program units where they are declared, that are visible to the statements below assuming static scope: a. While loop statements b. Other sub() statements