Previous value Piease refer to the table attached. The columns A and B are each the result of either LOOKUP$($sum$([$sales$]$L$-1))$ or PREVOUS$\_$VALUE$($sum$([$sales$])).$ Which of the statements is true? Pick ONE option Column A is a result of Lookup and column B is a result of Previous Value. Column A is a result of Previous Vatue and column B is a result of Lookup. Both A and B are the results of Lookup. Both A and B are the results of Previous Value.