A company has received the contract to begin developing a new suite of software tools to replace an aging
collaboration solution. The original collaboration solution has been in place for nine years, contains over a
million lines of code, and took over two years to developoriginally. The SDLC has been broken up into eight primary stages, with each stage requiring an in-depth risk
analysis before moving on to the next phase. Which of the following software development methods is MOST
applicable?

A.
Spiral model

B.
Incremental model

C.
Waterfall model

D.
Agile model