The correct option is B
Haploid and gametophyte
The plants of bryophyta undergo a haplodiplontic type of life cycle, where the dominant and independent phase is a haploid plant, that is, plant directly produces gametes and meiotic division is a post zygotic event. Since, the plant is haploid and directly produces gametes it is called as a gametophyte.
So, the correct answer is 'Haploid and gametophyte'