Given that the following method definition belongs to a class. [1 mark]

int evaluate(int x)

{

if (x == 1)

return 1;

else

return x + evaluate(x-1) ;

}

What is displayed when the following statement is called?

System.out.println("The result is " + evaluate( 5) );

Select one:

a. 5 4 3 2 1

b. 21

c. 5 4 3 2 1 0

d. The code will not compile because the keyword, if, wants the associated keyword, else.

e. 15