Its <u><em>valid</em></u>
VALID is something that is very logical and makes sense in the topic situation
The answer is therefore <u><em>VALID</em></u>
You are right, but that is not a question.
Answer:
B
You argue your stance with the claim
Answer:
Stratigraphy is a part of geology that is worried about the investigation of rock (layers) and layering (separation). It is fundamentally utilized in the investigation of sedimentary and layered volcanic rocks.
Explanation: