A recursive solution that finds the factorial of n always reduces the problem size by ______ at each recursive call.

The basic generic functional interface ________ in package java.util.function contains method test that takes a T argument and returns a boolean. Tests whether the T argument satisfies a condition.

a. Consumer b. Function c. Supplier d. Predicate

Give examples from the Student Registration System where

a. It would be convenient to use a set-valued attribute. b. It would be convenient to express a relationship (in the ODMG style) between two objects. c. It would be convenient to use inheritance.