Option(D) is correct
Option A : We have already been told that the bid is expected to barely cover the costs of supplying the tires on the newcars, so the analysts mentioned in the passage have presumably already taken into account that there is a sparetire supplied forthe Max 100.
Option B : If winning the bid led Rubco to win more exclusive contracts with the Maxilux, that might help support the executives' claim. But this statementindicatesonlythat Rubco already has several exclusive contracts to supply Maxilux with tires, not that winning the bid has led to, or will lead to, more such contracts, which is what would be needed.
Option C : As in answer choice (A), this is relevantto the costsof supplyingthe tires for the Max 100, but presumably this was taken into account by the analysts when they concluded that the bid would barely cover Rubco's costson the tires.
Option D : Correct. This indicates that by winning the bid Rubco has create the way to profit from the contract with Maxilux, specifically, by creating a market for replacement tires.
Option E : This is likely oneof the reasons that Rubco's bidonly just covers the Rubco's costs on the tires; it does nothing to justify the executives' claims that the bid will lead to a profit for Rubco. >br>
The correct answer is D.