Determine \Theta for the following code fragment in the average case. Assume that all variables are of type "int".

              a = b + c;
              d = a + e;
            

• \Theta(\log n)
• \Theta(n \log n)
• \Theta(n)
• \Theta(n^2)
• \Theta(n^2 \log n)
• \Theta(n^3)
• \Theta(2^n)