The correct answer is: B. evaluate and modify (if necessary) the program
The four steps of problem solving are:
- Analyze the problem. This involves identifying the problem, determining its scope, and gathering any necessary information.
- Plan the algorithm. This involves developing a step-by-step solution to the problem.
- Code the algorithm. This involves writing the program in a programming language.
- Evaluate and modify (if necessary) the program. This involves testing the program and making any necessary changes.
The fourth step is to evaluate and modify (if necessary) the program. This involves testing the program to make sure it works correctly and making any necessary changes. If the program does not work correctly, the programmer may need to go back to the previous steps and make changes to the algorithm or the code.
The other options are incorrect because they are not the fourth step in problem solving.
- Option A, analyze the problem, is the first step in problem solving.
- Option C, code the algorithm, is the third step in problem solving.
- Option D, plan the algorithm, is the second step in problem solving.
- Option E, desk-check the program, is a technique that can be used to test a program before it is run.