Answer:
Explanation:
To check which option is correct we will first make transition matrix.
Let the state 1 and state 2 represent the automobile and light rail
So, the transition is given by
![P=\left[\begin{array}{ccc}0.80+0.05&0.15\\0.5+0.15&0.80\end{array}\right]](https://img.qammunity.org/2021/formulas/mathematics/college/pesdts5lkee08rfuw3mo8ydvraoi5z454w.png)
![P=\left[\begin{array}{ccc}0.85&0.15\\0.20&0.80\end{array}\right]](https://img.qammunity.org/2021/formulas/mathematics/college/bt9ibmpwk2zc8u08gdi0f3tth6mejbivv7.png)
Since P as no any entry zero so, P as not absorbing stochastic matrix
Also,

since |P| ≠0
Hence, Markov chain is a regular stochastic matrix.