The exception from the four traits is : ( A ) Homospory
Key features of seed plants
The seed plants survive on land when planted due to certain key features that seed plants possesses and some of these key features are
- Pollen
- Reduced gametophytes and
- Seeds
While Homospory is not a key feature of seed plants it is form of reproduction that is found in pteridophytes. therefore it cannot favor the growth of plants on land.
Hence we can conclude that The exception from the four traits is : ( A ) Homospory