Beef and leather belts are complements in production. If concern about health and diet shifts the demand curve for beef leftward, the result in the market for leather belts will be .

High in the equilibrium price for the leather belt which results into decrease in the leather belts supply

Explanation:

  According to the given scenario, both beef and the leather belts are one of the complements in the production and the beef shifts towards leftward due to the concern about the diet and the health. The supply and demand curve plays an important role in the production cycle.

The Final outcome of the leather belts in the market are basically high in the equilibrium price  and due to this the supply of the leather belts production become reduce.

 Therefore, The given answer is correct.

b is the correct answer