have been assigned as engineering on building construction in Johor Bahru, responsible rocurement stage activity. (a) Draw a figure that explain Procurement steps. (4 mark) (b) Give your justification about each procurement stages and relevant responsibility that you have to do in order to accomplish the successful job. (4 marks) (c) Human resources or labour resource management is an important aspect that requires serious consideration during project development. It is made up between 20-30\% of total construction cost. Managing labour involved planning, organizing, monitoring and control. Answer the following questions based on Table Q4. (i) Construct a network diagram using Precedence Diagram Method (PDM) to determine the constructions activities total duration. (4.5 marks) (ii) Summarize all the ES, LS, EF, LF and TF in a table. Show the critical activities in the construction activities network. (4.5 marks) (iii) Based on the self-developed ADM network diagram, construct a resource histogram to determine the resource distribution. Perform a resource levelling if the maximum number of labour is limited to 6 person only. (8 marks) Table Q4 \begin{tabular}{|c|c|c|c|} \hline Activity & Predecessors & Duration & Number of worker \\ \hline A & & 3 & 6 \\ \hline B & A & 2 & 1 \\ \hline C & B & 5 & 5 \\ \hline D & B & 4 & 2 \\ \hline E & C & 9 & 4 \\ \hline F & C,D & 2 & 4 \\ \hline G & E,F & 1 & 6 \\ \hline \end{tabular}