Please solve the process control problem accurately and I'll rate you based on accuracy! Thank you for your time

Exercise 3 (25 points) A hot liquid is cooled by cold water in a counter-current heat exchanger: shown in Fig. E8.15: XD wc, Tc2 wc, Tal Heat exchanger TT wn. Thi Wh, Thz Temperature Tn2 is to be controlled by adjusting flow rate, we The temperature sensor/transmitter (TT) is direct-acting. Based on safety considerations, should the control valve be air-to-open or air-to-close? Should the feedback controller be direct-acting or reverse-acting