Which among the following are called the amphibians of the plant kingdom?

Bryophytes

The correct answer is Option (3) -Bryophytes

Apologies for the confusion. The correct answer is Bryophytes.

Bryophytes, which include mosses, liverworts, and hornworts, are often referred to as the amphibians of the plant kingdom because they require water for sexual reproduction, much like amphibians rely on water for reproduction. Similar to amphibians transitioning between water and land, bryophytes occupy a transitional position between aquatic algae and terrestrial plants in terms of their evolutionary development and ecological characteristics.