Answer:
Option C. $6,012
Explanation:
we know that
The formula to calculate the depreciated value is equal to

where
V is the the depreciated value
P is the original value
r is the rate of depreciation in decimal
t is Number of Time Periods
in this problem we have
t = 7 years
P = $8,000
r = 0.04
substitute in the formula above

Hope this helps :)