The client is planning the dates for accepting the final deliverables, but is seeking guidance on how quickly the team will be able to complete the work. When resourcing and accelerating projects using Agile methods, which statement BEST describes velocity?

a$.$ The forecasted number of story points a team can do in one iteration.

b$.$ The rhythm of planning, performing, and evaluating each iteration.

c$.$ The time from when work starts on an item until it is delivered.

d$.$ Determination that product and support are ready for transition and customer is ready to successfully use the product.