Which of the following is NOT an example of a computational artifact?
A. A PowerPoint presentation
B. An audio file
C. A CPU (central processing unit)
D. A mobile app

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This graph compares the cost of room and board at educational institutions in texas.

Apython programming question: assume s is a string of lower case characters. write a program that prints the number of times the string 'bob' occurs in s. for example, if s = 'azcbobobegghakl', then your program should print number of times bob occurs is: 2