Final answer:
The concept of metamorphic facies is false when applied to any type of parent rock because the metamorphic conditions vary depending on the rock's original composition and properties.
Step-by-step explanation:
The concept of metamorphic facies is not applicable to any type of parent rock, which makes the statement False. Metamorphic facies are specific to particular conditions of pressure and temperature that affect a rock's mineral content and texture during metamorphism.
Because the composition and properties of parent rocks differ, the metamorphic facies associated with them can vary. For example, rocks with a basaltic protolith will have different metamorphic facies compared to those with a shale protolith. Thus, understanding the probable parent rocks or protoliths is crucial to identifying the metamorphic facies and the resulting metamorphic rock.