I wanted to know which graph (i,ii,iii, or iv) and what is the value of the objective function at the optimal solution?

Problem 2-10 (Algorithmic) For the linear program Max 6A + 4B s.t. A + 3B S 6 104 + 6B $ 30 A, B 2 0 select the correct graph that identifies the optimal solution. What is the value of the objective function at the optimal solution?\f(iv) 10- B 9- 7- 5. 3 - 2. Optimal Solution: A=6, B=0 A 7 9 10 The value of the objective function at the optimal solution is