Assertion: The stoma lamellae have both PS I and PS II.
Reason: The grana lamellae lack PS II and well as NADP reductase enzyme.

Answer

D

Explanation

Thylakoid membranes possess photosynthetic pigments and coupling factos. They occur in specific groups called photosystems (previously quantasomes). There are two photosystems. The grana lamellae have both PS I and PS II and the stroma lamellae lack PS II ad well as NADP reductase enzyme.