QUESTION 40 Well-written programs include a lot of comments. These comments are read by the both programmer and user user programmer QUESTION 41 What will happen if no variables are declared and the following lines are executed? printf("variable c"); printf("x = 4.34"); Since c will automatically become an integer variable, the numbers 0 and 4.34 will appear when the program is executed the program will not compile successfully because x has not been declared the program will not compile successfully because c has not been declared when the program is executed variable c will appear on one line and x = 4.34 will appear on the next QUESTION 42 What will happen if no variables are declared and the following lines are executed? printf("variable c"); printf(x); when the program is executed variable c will appear on one line and x will appear on the next the program will not compile successfully because c has not been declared Since c will automatically become an integer variable, the numbers 0 and x will appear when the program is executed the program will not compile successfully because x has not been declared