**Correct option (c) (-7)**

**Explanation :**

We have

**Direct Method:** Solving 3x - 4y - 13 = 0 and 8x - 11y -33 =0, we obtain x = 11 and y = 5 so that (11, 5) is the intersection of these lines. The third line 2x - 3y + k = 0 also passes through (11, 5).

2(11) - 3(5) + k = 0

k = -7