Answers and Explanation:
A. This would likely be bryophytes, which are also seedless plants; however, unlike pteridophytes, bryophytes are nonvascular.
B. The two types of plants with seeds are gymnosperms and angiosperms. Gymnosperm applies here because angiosperms have multiple sub-categories.
C. This would be angiosperm, which is a type of flowering plant with seeds. Unlike gymnosperms, angiosperms have flowers; gymnosperms have cones.
D. Dicots is the answer; angiosperms are made up of two different categories of flowering plants: monocots (already provided) and dicots.
Hope this helps!