Final answer:
The NOT reasonable and useful investment for a beginning DIY artist is purchasing a comprehensive computer-recording system. A high-quality video camera and free graphics/word processing/website-creation software are reasonable and useful investments for a beginner.
Step-by-step explanation:
The NOT reasonable and useful investment for a beginning DIY artist would be option c) - purchasing a comprehensive computer-recording system for $5,000. This is because a beginning artist may not need such a high-end recording system at the start of their journey. They can explore and experiment with lower-cost options before investing in expensive equipment.
On the other hand, options a) and d) are both reasonable and useful investments for a beginning DIY artist. A high-quality video camera can help them record their artwork or create visual content, while downloading free graphics/word processing/website-creation software can provide them with tools to showcase and promote their work.
Option b) of spending $18,000 to start an in-house music publishing company could be a reasonable and useful investment if the artist's main focus is music. However, it may not be the best choice for a beginning DIY artist who is just starting out and exploring various artistic avenues.