Enter and execute the following code in python:

bonus = 25 salary += bonus print("Total salary:", salary)

a. What is the output of the preceding code? Is it what you expected?

b. Edit the code so that it produces valid output.

c. As a result of correcting this code segment, what is needed in order for the shortcut operators to work properly?

d. Is the following line of code valid: 23 += total? Why or why not?