Answer:
c. print( "7" + 'eight' )
Step-by-step explanation:
From the options listed in the question the only one that would produce an error would be option c. print( "7" + 'eight' ). This is because the second element being added is a string that says eight but it is being represented as a char variable. The ' ' is only used for single-digit character variables while the " " is used for words or strings of characters like the word eight. In this piece of code the system will try to read this as a Char variable but will detect more than one char and produce an error.