Your program does not calculate the average correctly. How might you have known that an error existed?

Select 4 options.

1. user feedback

2. print debugging

3. A user complained about the language used in the program.

4. test cases

5. automated testing

An npn transistor is correctly biased and turned on if the a. base is negative. b. collector is negative. c. collector is positive with respect to the emitter and negative with respect to the base. d. collector is the most positive lead followed by the base.