The wages for Nike workers increases. At the same time, we see the price for a substitute shoe, Adidas, increases. How does this affect the market for Nike shoes?

a.The demand curve will shift to the right; the supply curve will shift to the right

b.The demand curve will shift to the left; the supply curve will shift to the left

c.The demand curve will shift to the right; the supply curve will shift to the left

d.The demand curve will shift to the left; the supply curve will shift to the right