Jackie is the project manager, who has just joined the organization, and has been assigned to the project for the construction of a highway for the province. As part of project planning, she has been instructed to prepare a budget and provide it to management as soon as possible, so that the management is able to allocate and set aside the required investment. Since the organization is one of the leading companies in the design and construction of large-scale infrastructure, Jackie has no problems in obtaining historical information regarding past similar projects, to aid her in formulating a tentative budget for the project. In this case, the budget that she is drafting will be a a. Rough order of magnitude O b. A definitive estimate c. An exact budget detailing the exact cost of each activity d. A budget estimates