According to the text, which lessons were learnt about how to create a successful product? Choose.

1. Do extensive research on consumer preferences and prejudices.
2. Don't spend too much money in the early stages.
3. Test your product on a small group of consumers first.
4. Make sure your product does something other products can't do better.
5. Use your mistakes to change processes and procedures.
6. Try not to depend on others.

Based on the text:

Paragraph A implies the importance of thorough product safety testing (related to lesson 5).

Paragraph B suggests that even outcompeted products can have lasting design influences, hinting at the value of innovation (related to lesson 4).

Paragraph C mentions the failure to appeal to consumers due to design and market timing, suggesting the need for market research and understanding consumer appeal (related to lessons 1 and 4).

The most universally supported lesson from the failures described is the critical importance of rigorous testing and learning from mistakes.

Suggested answers based on the text:

1. Use your mistakes to change processes and procedures. (Implied by the investigation into the Note 7's overheating and subsequent safety process improvements.)

4. Make sure your product does something other products can't do better. (Implied by the SPOT Watch's unique features, even though it was outcompeted.)

5. Test your product on a small group of consumers first. (Implied by the failures related to consumer appeal and market readiness.)