Answer;
A. Seed cones contain ovules.
Step-by-step explanation;
-The gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. They do not have an outer covering or shell around their seeds, they do not produce flowers and also they do not produce fruits.
-In the life cycle of gymnosperms, the gametophyte generation takes place in a cone, which forms on the mature sporophyte plant. Each male gametophyte is just a few cells inside a grain of pollen. Each female gametophyte produces an egg inside an ovule.