Which lifecycle accepts and expects changes during requirements so would cope well with a rapid...

The Iterative (or Agile) lifecycle model is specifically designed to deal with changing requirements and a rapid pace of change. Unlike linear models like Waterfall or the V model, which expect requirements to be fixed early, the iterative model delivers the solution in a series of repeated cycles (iterations/sprints). This approach embraces the reality that requirements will change as stakeholders learn more about the evolving product and the business environment shifts. It explicitly incorporates frequent feedback loops and allows for the adaptation of requirements throughout the project, making it the most flexible and suitable model for unstable or complex environments.

(Reference: BCS Requirements Engineering – Lifecycle Models, Agile/Iterative)