Most System Development Life Cycle (SDLC) frameworks have four general phases: Planning and analysis, design, implementation, and support and evaluation. Which of the following statements are correct? (Indicate all that are true) A. A cost-benefit analysis is often performed in the planning and anlysis phase B. The planning and analysis phase, design phase, and implementation phase constitute the system acquisition process. C. The major of a project's total cost will often be after go-live implementation in the long-term support of the system D. The primary focus of the planning and analysis phase is on dealing with the technology problems