- A flower produces pollen and seeds
- A flower is a part of a plant
- So, a flower is a part of a plant for producing seeds

- A flower is a part of a plant for producing seeds
- Something is used for that something 's purpose
- Hence, a flower 's purpose is to produce seeds

Hence, a flower 's purpose is to produce seeds
Q: Which of the following is the main role of flowers found on most flowering plants?
Context:
- Something is used for that something 's purpose 
- A flower produces pollen and seeds 
- A flower is a part of a plant