The correct answer is D.
OBJ-5.1: With respect to product delivery, there are two approaches to prioritization that are frequently used when working in an agile way, Moscow and ordering (1, 2, 3 … n). It is important to use the correct approach in the correct situation because these do not work in the same way. MoSCoW typically works at higher levels and over longer timescales where requirements may be grouped by function and dependencies exist between these functions. Ordering primarily works at a lower level (or task level) where certain technical activities are taking place.