Which of the following statements is correct about a sentinel? O a. A sentinel is a value that creates a bridge between a data set and unrelated input. O b. A sentinel is a value that terminates a...

Extracted text: Which of the following statements is correct about a sentinel? O a. A sentinel is a value that creates a bridge between a data set and unrelated input. O b. A sentinel is a value that terminates a program. O c. A sentinel is a value that is part of the data to be processed by the program. O d. Asentinel is a value that indicates the end of an input sequence.