What is the difference between "iterative" and "incremental" development?

A Iterative development repeatedly refines a system or feature through successive cycles; incremental development builds the system piece by piece, delivering separate, complete portions of functionality — many Agile approaches combine both B Iterative and incremental development are completely identical terms with no nuance C Incremental development requires delivering the entire system at once, with no partial deliveries D Iterative development means each cycle produces a completely different, unrelated product