The correct answer is B) Bronze bushings. Stern tube bearings on large vessels are typically made of hard rubber, resin-bonded composition, or wooden (lignum vitae) strips, but not bronze bushings. Bronze is not commonly used for stern tube bearings due to its tendency to corrode and wear down faster compared to the other materials mentioned. The use of bronze in this application would not meet the durability and longevity requirements for a large vessel's stern tube bearing system. The other answer choices (A, C, and D) are all materials commonly used for stern tube bearings, while bronze bushings are not.