Identify the correct difference between gymnosperms and angiosperms.
1. Gymnosperms do not form fruit, angiosperm form fruit.
2. Gymnosperms have naked seeds, angiosperms have enclosed seeds.
3. Gymnosperms are dicots, all angiosperms are monocots.
4. Gymnosperms are phanerogams, angiosperms are not phanerogams.