Which describes the double$-$declining balance depreciation method?

$($a$.)$ Estimated salvage value is greater at the end of the assets$$ useful life than with straight$-$line depreciation.

$($b$.)$ It yields reports of higher income in the early years and lower income later on$.$

$($c$.)$ This method decreases the useful life of the asset and disposal costs by half.

$($d$.)$ The depreciation expense is larger in the first few years and gets smaller as time goes on$.$