Q7.4MCQMarks unknownWhat does the following code do? var a, b: integer; begin a:=a+b; b:=a-b; a:=a-b; end;(A)exchanges aaa and bbb(B)doubles aaa and stores in bbb(C)doubles bbb and stores in aaa(D)leaves aaa and bbb unchanged(E)none of the aboveSign in to save attempts.Show answer← PreviousNext →SolutionsDiscussionLoading…Sign in with Google