Production Possibilities -The Table Above Shows the Production Possibilities Frontier for the for the Economy

Production possibilities
-The table above shows the production possibilities frontier for the economy of Sauria. If the economy is able to produce 7 hundred guns and 10 tons of butter next year, we can conclude that next year

A) the amount of resources or technology has increased.
B) the economy has moved along its production possibilities frontier.
C) the production possibilities frontier has shifted inward.
D) efficiency has decreased.