Question 3: Roles and contract administration issues under the NEC4 A major refurbishment project is taking place near the A45 and Mike Dean Contractors (MDC) have recently signed a contract to undertake enabling works for the proposed project. The works require undertaking critical major demolition works, associated utility diversions and construction of new services and landscaping. Two contracts have been awarded to MDC. The demolition works are based on the NEC Option A (Priced contract with activity schedule) and the associated utility diversions and construction of new services and landscaping is based on Option C (Target contract with activity schedule). a) During phase 1 of construction, MDC propose a design change to enable easier access to the site from the A45. The proposed design changes include the installation of an automated traffic signalling mechanism. Given that part of this work is associated to the demolition works contract-Option A, while the other part is related to Option C, the contract manager has asked you to explain the following: the implications of adopting either contract particularly when considering: (i) risk allocation, (ii) payments, (iii) quality and (iv) design change implications