Question (4) (25% Marks) a) What is the meant by: types of buses-operand - simplex transmission b) Outputo L2 An one way traffic light that works by the following sequence : Red 30 seconds Green 25 seconds Amber 5 seconds Red Light . Amber Light Design this traffic light by using 1. Sequencer function program. 2- Ladder diagram using TON delays Timer. Green Light