Ann Torbert purchased a truck for $$11,000$ on January $1,2016.$ The truck will have an estimated salvage value of $$1,000$ at

the end of $5$ years. Using the units of activity method, the balance in accumulated depreciation at December $31,2017$ can be

computed from the following formula:

$($$$11,000-$: Total estimated activity$)$x Units of activity for $2017$

$($$$10,000-$: Total estimated activity$)$x Units of activity for $2017$

$($$$11,000-$: Total estimated activity$)$x Units of activity for $2016$and $2017$

$($$$10,000-$: Total estimated activity$)$x Units of activity for $2016$and $2017$