Question 6 (2 points) Marlow Company purchased a point of sale system on January 1 for $3,400. This system has a useful life of 10 years and a salvage value of $400. What would be the book value of the asset at the end of the first year of its useful life using the double- declining-balance method? a) $2,720 b) $600 O c) $680 d) $2,320