The answer would be : C. Manufacturers only
The otc product refer to 'over the counter' Medicine Product. These types of medicine products could be sold to a customer without a prescription so the Retailers does not really have to checked the efficiency of the Product for each consumer
Answer: The Guardrail can revoke this
Explanation: An offer can be <em>revoked </em>before it has been accepted, even if it is not the best way, it can happen, but the revocation must be communicated to the offeree. The contractor could do this, because is was not accepted in that moment.
