Which of the following is true about bryophytes?a. Some of them are thalloid.b. They possess archegonia.c. They contain chloroplasts.

Bryophytes are green photosynthetic (contain chloroplast) and thalloid structures (liverworts, hornworts) or differentiated into root-like, stem-like and leaf-like structures (mosses).  They have motile  sperms and  so they need water for fertilisation. Archegonia evolved for the first time in bryophytes in the plant kingdom.