Which of the statements regarding haplontic life cycle is incorrect?

The correct option is C Mitosis in the zygote results in the formation of haploid spores.
In a haplontic life cycle, the plant body is a gametophyte and dominant a dominant phase. The reproductive cell undergo mitosis to form gametes that are haploid, the gametic fusion results in a diploid zygote, which undergoes meiosis to form haploid spores.

So, the correct answer is 'Mitosis in the zygote results in the formation of haploid spores.'