Question $3$

What is a benefit of the Reference class containing its own GetDisplayText method, instead

of having the Scripture class display the book chapter and verse directly?

If the reference is ever used in a different context, this method can be easily reused.

It will be easier to debug and fix a problem, because there will be a single spot in the code that is

always used for this functionality.

All of these are benefits.

If the Scripture class displayed the values, it would make it more difficult to update the Reference

class in the future to store its data differently.