Silver Leaf, a retail bakery, traded two ovens having a total adjusted basis of $680 for a new oven costing $1,320. They received an $800 trade-in allowance for the old ovens and paid $520 in cash for the new oven. The bakery also traded a used van with an adjusted basis of $4,500 for a new van costing $9,000. They received a $4,800 trade-in allowance on the used van and paid $4,200 in cash for the new van. What portion of the new properties' bases qualifies for the Section 179 deduction? 

A. $0 

B. $520 

C. $4,200 

D. $4,720