The male prothallus $(gametophyte)$ in $Pinus$ consists of:

Vessels are found in

The microsporophyll of Cycas represents a

Which of the following statements is $NOT$ consistent with Gymnosperms?

In $Pinus$,the megaspore upon germination forms:

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 $(R)$?