Which sequence of steps correctly calculates the probability of moving from transient state 2 to state 4 in a Markov chain?

Which sequence of steps correctly calculates the probability of moving from transient state 2 to state 4 in a Markov chain?

• A. Step 1: find P^T; Step 2: I - P^T; Step 3: S = (I - P^T)⁻¹; Step 4: f₂,₄ = (s₂,₄ - δ₂,₄) / s₄,₄
• B. Step 1: Compute Q; Step 2: N = (I - Q)^(-1); Step 3: B = N R
• C. Step 1: Find R; Step 2: Compute B = R^T N; Step 3: read off absorption probabilities
• D. Step 1: Compute transition matrix P; Step 2: Raise P to the power t; Step 3: Read off probability from the t-step matrix

Answer: (A)