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 develop originally. 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