Which one of the following pairs of plants are not seed producers?

Explanation

a.Seed-producing plants belong to Spermatophyta It includes gymnosperms and angiosperms. Seed habit or seed formation originated in gymnosperms. It requires the retention of megasporangium or the only on the parent plant and non-shedding of megaspore, development of integument and in site formation of the female gametophyte. All these features developed in gymnosperms and angiosperms. Thallophyt es, bryophytes, and pteridophytes lack these features and thus do not reproduce by producing seeds. Fern and Funaria belong to pteridophytes and bryophytes respectively so they do not reproduce by producing seeds. Ferns are seedless vascular plants, while Funaria is a non-vascular plant (a moss), and both do not produce seeds. b. Funaria is a non-vascular plant (moss) and does not produce seeds, while Ficus is an angiosperm and produces seeds. c. Chlamydomonas is a green alga and does not produce seeds, while Ficus is an angiosperm and produces seeds. d. Funaria is a non-vascular plant (moss) and does not produce seeds, while Pinus is a gymnosperm and produces seeds.