Final answer:
Ferns exhibit alternation of generations, where they cycle between a dominant sporophyte stage and a smaller gametophyte stage. Humans do not exhibit alternation of generations; this is specific to plants.
Step-by-step explanation:
To interpret the life cycle of a fern, one must understand the concept of alternation of generations. This term describes the process by which ferns cycle between two distinct forms: the haploid gametophyte and the diploid sporophyte. In this cycle, a mature fern (the sporophyte) produces spores by meiosis in structures called sporangia found under the leaf fronds. These spores grow into small, heart-shaped gametophytes which are often hard to find because they are quickly overgrown by the new sporophyte that develops from the fertilized egg. The gametophytes contain antheridia and archegonia which produce sperm and eggs, respectively. The sperm are flagellated and swim to the egg for fertilization, leading to the growth of a new sporophyte. Thus, ferns have a dominant sporophyte stage. Answering the question, it is option (b) that is incorrect, as humans do not exhibit alternation of generations; this process is characteristic of the plant kingdom, including ferns but not animals.