Which of the following set of statements represents the five stages defined by the Capability Maturity Model (CMM) in increasing order of maturity?

Explanation

The SEI Capability Maturity Model has five levels in this fixed order: Level 1 Initial (ad hoc, success depends on individuals), Level 2 Repeatable (basic project management, earlier successes can be repeated), Level 3 Defined (a documented, organisation-wide standard process), Level 4 Managed (process and product quality measured quantitatively) and Level 5 Optimizing (continuous improvement from quantitative feedback). The key discriminator among the options is that Repeatable comes before Defined, and Defined before Managed, which only option 2 satisfies.