Consider the following expression p = q+r s = p+1 t= q+r u = s + t v = t + u…

Answer: A. 7,8 — v = t+u = q+r+s+t = q+r+p+1+t = q+r+p+1+q+r =q+r+ q+r+1+q+r =（q+r）+（q+r）+（q+r）+1 DAG: Number of nodes = 7, Number of edges = 8

1. A.

   7,8

2. B.

   9, 11

3. C.

   8, 7

4. D.

   11,9

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Correct answer: A

v        = t+u
          = q+r+s+t
          = q+r+p+1+t
          = q+r+p+1+q+r
          =q+r+ q+r+1+q+r
          =（q+r）+（q+r）+（q+r）+1

DAG: Number of nodes = 7, Number of edges = 8