Which of the Following Expenditures Made Subsequent to Acquisition Should

Which of the following expenditures made subsequent to acquisition should be fully expensed in the period the expenditure is made?

A) an expenditure made to add new asset services
B) an expenditure made to maintain an existing asset so that it can function in the manner intended
C) an expenditure made to extend the useful life of an existing asset beyond the time frame originally anticipated
D) an expenditure made to increase the efficiency or effectiveness of an existing asset