Answer:
The correct answer is the option C: Tours of its factories.
Step-by-step explanation:
To begin with, the most important marketing vehicle the company has is the tours of its factories due to the fact that it is quite known that the showdown of the product and its current production to the customers increase the amount of desire that they have for them. Moreover, the fact of showing to the clients how well the products are made, with the greatest quality and all the correct process, the clients only feel more amaze for the products of the company and that is why that its demand increase as well as its sales, due to the tours.