$20)$ What is the earliest that Activity D can begin if Activity A takes $3$ days, Activity B takes $5$ days, and Activity C takes $7$ days? A$)$ day $15$B$)$ day $7$C$)$ day $5$D$)$ day $321)$ Which of these indirect costs is typically classified as an overhead cost?A$)$ advertisingB$)$ shippingC$)$ sales commissionsD$)$ taxes $22)$ Which of these indirect costs is typically classified as a selling or administrative cost?A$)$ secretarial supportB$)$ utilitiesC$)$ insuranceD$)$ depreciation $23)$ Which of these approaches will NOT accelerate the completion of a project?a$)$ Improve the productivity of existing project resources.b$)$ Increase the bureaucratic oversight.c$)$ Improve the working method.d$)$ Increase the quantity of personnel and equipment. $24)$ One reason for crashing a project is:a$)$ the project has slipped behind schedule.b$)$ that the initial schedule may be too pessimistic.c$)$ market needs change and the project is not in demand any more.d$)$ there are no repercussions for delivering the project late.