Which bryophyte is known as peat moss?

Given below are two statements: One labelled as Assertion $A$ and the other labelled as Reason $R$:
Assertion $A$: The first stage of gametophyte in the life cycle of moss is protonema stage.
Reason $R$: Protonema develops directly from spores produced in capsule.
In the light of the above statements,choose the most appropriate answer from options given below:

Select the correct option for the given figure.

How are gametes produced in bryophytes?

Peat is obtained from

Describe the common characteristics of Bryophytic plants.