The statement x++;
a) increments the value currently stored in the variable x and stores that new value back in the variable x
b) checks to see if x is at its maximum value and if so, exits the for loop
c) moves the character pointer x to the next integer number in the string

The correct option for the given question is option(A) i.e Increments the value currently stored in the variable x and stores that new value back in the variable x.

Explanation:

x++ is an  increment operator Their are two types of increment operator

1.Post increment

2.Pre increment.

Post increment operator assign the value first to variable then increment the value by 1.

for example

int a=7,t;

t=a++; //post increment

Pre increment operator first  increment the value by 1 then store into variable.

int  a=7,t;

t=++a; // Pre increment.

So the correct answer is option(a)

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.