Antheridia and archegonia are most reduced in

What are the common characteristics of Gymnosperms?

The endosperm of a gymnosperm is:

Assertion $(A)$: The scale leaves of $Araucaria$ are small and brown.
Reason $(R)$: The gametophyte stage of $Araucaria$ is long-lived and subterranean.
Which option is correct for Assertion $(A)$ and Reason $(R)$?

What is the dominant phase of gymnosperms?

Select the feature that distinguishes $Gnetum$ from $Cycas$ and $Pinus$ and shows affinities with angiosperms.