A new piece of petroleum drilling equipment is purchased for $250K with an estimated salvage value in 7 years of $40K. Give the fourth year's depreciation charge that can be deducted from the yearly business income for the following depreciation methods:

a) Straight Line

b) SOYD

c) DDB

d) MACRS

e) If sold in year 4, what is the amount of the MACRS depreciation charge in year 4.