Which depreciation method allocates depreciation based on wear and tear rather than$$ obsolescence?

Question content area bottom

Part $1$

A$.$

the

firstminus$$in$,$

firstminus$$out

method

B$.$

the

unitsminus$$ofminus$$production

method

C$.$

the

doubleminus$$decliningminus$$balance

method

D$.$

the

straightminus$$line

method