please help me

its 3,2 for B=3 and for D=2

E= 0.5

F 0.5

4 Antennas are the main element for making the connection wireless. As an antenna and wireless developer for smart home application, you have been assigned a smart home project for the duration stated in Table Q54 in one of the new residential areas in Parit Raja. The activities for this project are stated in Table Q54. Predecessors Time (months) 1 Start A Table Q54 Activity Activity Name A Site Survey for checking and investigating the suitability of the wireless/internet coverage. B Tower Construction for the hub of the wireless system. Wireless Receiver Installation in the selected of the designated houses. D Wireless Appliances Installation in the house (Main Switches, Lamps, TV, Auto-Gate, Main Door, Mobile Phone, and other wireless gadgets). E System verification and testing. F Demonstration A 3 2 CB BD E 3,2 0.5 (a) State FIVE (5) stages in Project Management. (2 marks) (b) Construct an activity network diagram for RRP project. (4 marks) (C) Determine the Critical Path for the project (2 marks) (d) State the duration of the project (2 marks)