A-Plants produce flowers to aid pollination as they attract insects. They also produce fruit to aid seed dispersal as humans and other animals are more likely to pluck the fruit and disperse seed of the fruits are sweet
B- most flowers have petals but not all. Some flowers e.g calla lilies have no petals nor sepals.
C- most flowers have stamen and carpel( not all)
D- all insect pollinating flowers have scents( might be pleasant to certain species and not to others)
E- orchids bear fruit( although it’s not edible). Rice plant also bears fruit (a grain of rice is a fruit)