On July $29,20$x$3,$ Bill Baxter purchased residential real estate $($apartment$)$ at a total cost of $$900,000.$ Of this amount, $$100,000$ was allocated to the underlying land. What is Bill's allowable depreciation deduction for tax year $20$x$4?$

A

$$32,730$

B

$31,200$

C

$21,000$

D

$29,090$

E

None of the above