Concept:The rock cycle is a continuous process that transforms rocks from one type to another through weathering, heat, pressure, and melting. A valid sequence in this cycle is sedimentary rock changing into metamorphic rock, and then melting into magma.
Explanation:Sedimentary rocks form when sediments are compacted and cemented together.
When these rocks are buried deep inside the Earth, high temperature and pressure convert them into metamorphic rocks in a process called metamorphism.
If the metamorphic rock is subjected to even higher temperatures, it melts completely to become magma.
Therefore, the order Sedimentary → Metamorphic → Magma represents a natural progression in the rock cycle.
Option B (Igneous → Metamorphic → Sedimentary) is also a possible path but does not match the sequence given in the question. Option C starts with magma, which is not a rock type and ignores the prior steps. Option D is incorrect because igneous rock does not directly become magma without first being metamorphosed or melted under specific conditions.
Hence, among the given options, only option A correctly depicts a proper sequence within the rock cycle.
Answer:Option A: Sedimentary Rock, Metamorphic Rock, Magma