Answer:
The correct answer is option c, that is, gametophyte and sporophyte.
Step-by-step explanation:
In biology, the metagenesis or heterogenesis is also known as the alternation of generations. It refers to the alternation of an asexual phase and a sexual phase in the life cycle of an organism. The phenomenon of alternation of generation is found commonly in fungi, algae, and plants. In the process, the sexual phase known as the gametophyte generation generates sex cells or gametes, and the sporophyte generation or the asexual phase generates spores asexually.