Figure $13-4$ shows short$-$run cost and demand curves for a monopolistically competitive firm in the market for designer watches.

Refer to Figure $13-4.$ What is the area that represents the total fixed cost of production?

$P_{0}ad{P}_3$

$O{P}_{1}a{Q}_a$

$P_{1}bd{P}_3$

That information cannot be determined from the graph.