6. Near the end of 2007, Wilson Co. made the following purchases. The months involved in all cases are December 2007 and January 2008. Date Date Date Date Goods Invoice Goods Invoice Amount FOB Shipped Mailed Rec'd Rec'd $1,875 Destination 12/29 1/2 1/5 1/4 2,430 Shipping Point 1/2 12/29 1/4 12/30 1,690 Shipping Point 12/28 1/2 1/3 1/4 2,700 Destination 12/29 12/27 12/31 12/28 What amount of the above purchases should be included in inventory at December 31, 2007? a. $4,390 I b. $1,690 c. $6,265 d. $3,565