Final answer:
Software is the most attractive target for pirates due to its high development cost and low reproducibility costs.
Step-by-step explanation:
The most attractive target for pirates because of high development cost and low reproducibility costs would be Software. Software development can require significant time, resources, and expertise, resulting in high development costs. However, once the software is developed, it can be easily reproduced at a relatively low cost, making it an appealing target for piracy.