I believe the answer is a
G1 phase is the phase of the cell cycle that cells grow and synthesize new proteins and organelles.
G1 phase is the phase between the completion of the mitosis and the beginning of the DNA synthesis in the S phase. In this phase, protein synthesis and production of organelles happen.
It means wolf are begining to disseaper. They are going to be extinct.
The germinal layers that give rise to the digestive system is Ectoderm, Endoderm, Mesoderm, Respectively. And the best answer among your choices is the last option which is C. I hope you are satisfied with my answer and feel free to ask for more