Answer: There are more snake births than deaths.
Step-by-step explanation:
Considering the phrasing of the prompt, especially the articulation in "DEFINITELY," I believe the aforementioned answer to be the most likely among the given options. As I understand, other options are quite possible, however, are not inherent to the given occurrence. For a population to increase, the input (births) to that quantity must exceed it's output (deaths).
I hope this helps, my friend. God bless.