Answer:
B. Pine (seed-bearing plant)
C. Pistil (part of the flower of a seed-bearing plant)
D. Spore cases are not related to seed-bearing plants, but rather to spore-bearing plants such as ferns.
E. Fruit (a mature ovary of a seed-bearing plant)
I. Cone (the reproductive structure of a seed-bearing plant)
L. Anther (part of the flower of a seed-bearing plant)
M. Pollen (the male reproductive cells of a seed-bearing plant)
Therefore, options B, C, E, I, L, and M are related to a seed-bearing plant.