I also believe the answer is A.
I believe that the correct answer would be Radioactive Dating of each layer because it give a precise age based on the amount of radioactive decay the rock releases over time
I hope this helps you; please let me know
Answer:
The answer is "intragenic suppressor".
Explanation:
In this question, the second mutation on the inside of a mutated gene, that leads to both a simple restoration. Its second mutations were its instance of even a mutation suppresser because it contributed to both the evident recovery of its original phenotype from its second mutation within such a gene.
D. Fold mountain that appeared wavy I think but just in case check an other answer