Figure 51 the Figure Shows a Linear Production Possibility Curve Representing

Multiple Choice

Figure 5.1. The figure shows a linear production possibility curve representing a tradeoff faced by a country, between necessities and luxuries​.
-To say that "there is a scarcity of gold" means that:

A) gold prices will plummet.
B) there is not enough gold to satisfy people's demand.
C) there are a very few substitutes for gold.
D) gold is relatively less expensive than other metals.
E) the demand for gold is changing.