Some algae demonstrate the phenomenon of alternation of generations, in which a multicellular, diploid, spore-producing organism gives rise to a multicellular, haploid, gamete-producing organism. Which of the following statements about alternation of generations is false?

a. The haploid and diploid organisms may or may not differ morphologically.
b. The haploid and diploid organisms differ genetically.
c. Only the haploid organism may also reproduce asexually.
d. Haploid gametes can produce new organisms only by fusing with other gametes.
e. Diploid sporophytes may undergo meiosis to produce haploid spores.