Answer:
True, in accordance to the law of supply
Explanation:
"As more people buy bicycles, the demand for bicycle helmets will increase and the price of a helmet will decrease. The fall in the price of a bicycle helmet will decrease the supply of bicycle helmets."
This statement is true because it is in accordance with the law of supply.
The law of supply states that as prices increase, supply will increase because suppliers will be willing to supply more at a higher price than at a lower price.
Hence it is simply and factually true that ''the fall in the price of a bicycle helmet will decrease the supply of bicycle helmets''