A Farmer in the Midwest Who Produces Wheat Faces a Horizontal

A farmer in the Midwest who produces wheat faces a horizontal demand curve because:​

A) the quantity supplied by him is so large relative to the market that it has no impact on the market price for wheat.
B) the quantity supplied by him is so small relative to the market that it has no impact on the market price for wheat.
C) he produces a good for which there are no substitutes.
D) he produces a good for which there are no complements.
E) he produces a good that no other firm in the market produces.