In Lifecycle Models, What Should Testing Provide in Term of Speed

In lifecycle models, what should testing provide in term of speed of releasing the product to market?

A) There is no relationship between testing and the speed of releasing the product to market.
B) As testers, we need to make sure that only critical bugs are solved, all other bugs can be left unsolved so that the product is released as fast as possible.
C) As testers, we need to employ testing that will make sure that all failures are identified.
D) As testers, we need to employ testing that will not substantially slow the progress of the product to market, but will help reduce the risk of a catastrophic failure.