In the program segment of Exercise 23: a. Give two possible data types for the variable Item. b. Give two possible data types for the variable Number. After the first pass through the While loop, what...

In the program segment of Exercise 23:

a. Give two possible data types for the variable Item.

b. Give two possible data types for the variable Number.

After the first pass through the While loop, what are the contents of the file

Merged? How many passes are made through the While loop? When the While loop is exited, what are the contents of the file Merged? Which names are added to the end of the file Merged to complete the merging of the two files?