which one is the correct answer? help me?

Ivanhoe Company began operations on January 1,2020, and uses the FIFO method in costing its raw material irventory Management is contemplating a change to the LIFO method and is interested in determining what effect such a change will have on net incame Accordingly, the following informstion has been developed: The company deems it impracticable to apply the retrospective approach Based on the above information, a change to the LIFO method in 2021 would result in net income for 2021 of $1290000.$990000$1350000$1228000