Final answer:
The statement that expresses the writer's opinion is that the safety bicycle would look familiar to today's cyclists, as it conveys a subjective viewpoint.
Step-by-step explanation:
The statement from the passage that represents the writer's opinion is 'A. The safety bicycle would look familiar to today's cyclists.' This is an opinion because it expresses the writer's personal view on how a contemporary person might relate to the appearance of an older style of bicycle. In contrast, statements B, C, and D present factual information without expressing personal beliefs or judgments.