You have client last names stored in column A and the date of their first purchase in column B. You would like to create a custom account number by combining the client’s last name and date. What...

You have client last names stored in column A and the date of their first purchase in column B. You would like to create a custom account number by combining the client’s last name and date. What function would you use to complete the task?

(a) CONCATENATE

(b) LEFT