46. The delete operator returns ______ to the operating system

A. memory that is no longer needed
B. void
C. recycle bin
D. None of the above

47. The major advantage of data hiding is that _____

A. your programs can include more data
B. you no longer need functions
C. no one can ever use your data
D. your data will be used correctly

48. The letter V is a _____

A. character literal constant
A. numeric literal constant
C. string literal constant
D. variable

49. Separating parts of a program into units that remain unaffected by other parts of a program is the concept known as _____

A. intrusion
B. volatility
C. encapsulation
D. protection