Which one of the following groups is called ‘amphibians of plant kingdom’ ?

Bryophytes (often misspelled as Biyophytes in the options) are known as the 'amphibians of the plant kingdom'. This designation arises because, while they are the most primitive land plants and can live in soil, they are fundamentally dependent on water for sexual reproduction. Similar to biological amphibians like frogs that require water for their life cycle stages, bryophytes need a film of water for their flagellated male gametes to swim and reach the female gametes for fertilization. This group includes non-vascular, seedless plants such as mosses, liverworts, and hornworts. In contrast, Thallophytes have an undifferentiated body, while Pteridophytes are the first vascular plants, and Gymnosperms are seed-bearing plants.