Final answer:
Samson Company's inventory amount on December 31, 2015 using the LIFO method would be $560.
Step-by-step explanation:
The LIFO (Last-In, First-Out) inventory method assumes that the most recently purchased items are sold first. To calculate Samson Company's inventory amount on December 31, 2015 using the LIFO method, we need to determine the cost of the remaining units in inventory.
First, let's calculate the cost of units sold:
January 1 inventory: 20 units x $70 = $1400
March 10 purchase: 10 units x $80 = $800
Cost of units sold: $1400 + $800 = $2200
Next, let's calculate the remaining units in inventory:
Units remaining: 20 units + 10 units - 23 units sold = 7 units
Cost of remaining units: 7 units x $80 = $560
Therefore, Samson Company's inventory amount on December 31, 2015 using the LIFO method would be $560 (Option D).