What is a primary principle of the Rapid Application Development methology? One of the primary principles of the Rapid Application Development methology is early prototyping of the _ in the development cycle.

I tried "product" and it was incorrect

Write a chained if-else statement that captures the following scenario: suppose r is a rate for a mortgage loan. if r is less than 2.5% (.025) then print "great"; if r is at least 2.5% but less than 4%, print "good"; and if r is 4% or higher print "not great". enter your code in the box below.