Answer: $107
Step-by-step explanation:
When a division is able to sell all of its products to consumers outside the company, the transfer price within the company should be at the same price that the good would be sold to outside consumers.
This is to ensure that the division does not suffer an economic loss by selling to another division instead of selling to an outside customer. In this case therefore, the Trailer division should transfer the trailers at the retail price of $107 that it would have made from selling to outside customers.