What is an online alternative to customers sending checks via mail?

This can be removed from a report to prevent printing blank pages

A) Alternating Row colors B) White space C) Extra space

Answer the following statements true (T) or false (F)

1. An interface reference may invoke only the methods that the interface declares. 2. To use an interface, a class must define only the methods in the interface that it will need to use. 3. An interface always should be used to specify data and services that will be provided by objects in a hierarchical relationship. 4. A class may implement only one interface. 5. A derived class can add its own instance variables, Shared variables, properties and methods, and it can customize methods and properties it inherits.