Answer :
The correct code to produce the output '5 66 777 8888 99999' is b. 'print("5", "66", "777", "8888", "99999", sep="")', using an empty string as the separator argument in the print function.
The student has asked for the correct code segment to produce the output 5 66 777 8888 99999. When using the print() function in Python, the default behavior is to print each argument with a space in between each one.
Therefore, the correct answer is option b) print("5", "66", "777", "8888", "99999", sep="") because the sep parameter specifies the separator to use between the values, in this case an empty string, resulting in no spaces between the numbers in the output.