please answer questions

Question 18: Gary's workbook includes three worksheets of data and text He needs to change all instances of Account to Accounts (plural). He estimates that Account appears at least 75 times in the workbook What do you recommend? Answer: A O Use Find to locate each instance and make the manual change one by ono B. O Use Replace All to change all instances on every tab simultaneously C. O Click the Replace button for each instance as Find locates it D. O Make one manual replacement, and then copy and paste that to all other instances Question 5: Which of these is a properly written cell reference? Answer: A. B. C. D. B2 54 3F O AC