In $2019,$ Jessica bought a new heavy truck for $$49,000$ to use $80\%$ for her sole proprietorship. Total miles driven include $10,600$ in $2019,11,600$ in $2020,$ and $11,100$ in $2021.($Use Table $6$A$-1)$

Required:

A$.$ If Jessica uses the standard mileage method, how much may she deduct on her $2021$ tax return $($miles were incurred ratably throughout the year$)?$

B$.$ What is the deduction for $2021$ assuming the actual method was used from the beginning? Calculate depreciation only; the truck is not limited by the luxury auto rules. Also, assume $179$ was not elected in the year of purchase.

A: $?$

B: $7,526$