Ski Powder Resort ends its fiscal year on April 30. The business adjusts its accounts monthly, but closes them only at year-end (April 30). The resort’s busy season is from December 1 through March 31. Adrian Pride, the resort's chief financial officer, keeps a close watch on Lift Ticket Revenue and Cash. The balances of these accounts at the end of each of the last five months are as follows:
    ​    ​    ​    ​    ​    ​    ​Lift Ticket Revenue             ​Cash
November 30       ​ 9,000
December 31       ​ 200,000                   ​    ​    ​  59,000
January 31            ​640,000                    ​    ​    ​ 94,000
February 28         ​ 850,000                  ​    ​    ​ 116,000
March 31           ​   990,000                  ​    ​    ​ 138,000
Lift Ticket Revenue for the month ended February 28th is ____
A、850,000.
C、990,000.