Based on the description provided, the correct statement is:
C. Bridgestone is selling to the original equipment market.
Step-by-step explanation:
The description states that Bridgestone manufactures tires that truck manufacturers buy and install on their trucks. This indicates that Bridgestone is selling to the original equipment market. The original equipment market refers to manufacturers selling their products directly to vehicle manufacturers for installation in new vehicles.
None of the other statements are supported by the given information. Option A mentions multiple buying influence, but there is no information to support this. Option B talks about opportunities in the aftermarket, but the description focuses on the initial installation by truck manufacturers. Option D and E make assumptions about product quality and supplies, which are not mentioned in the description.