Rock layers tell a story about their past. what is the basic assumption that is made when reading this story?

Had to look for the missing options and here is my answer.

Rock layers tell something of what has occurred in the past times. Based on this, we can assume as we read this story is that "t he process in the rock cycle were the same in the past as they were today." This answer is based on the actual options posted. Hope this answers your question.