The correct answer is the first one because:
1. x could be any number, it does not affect the function itself;
2, y approaches 0 since when x is infinitely big negative number (goes to negative infinity),
![\sqrt[3]{108} ^{2x} -\ \textgreater \ 0](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B108%7D%20%5E%7B2x%7D%20%20-%5C%20%5Ctextgreater%20%5C%20%200)
However, since it will never reach 0, y never could be 0 as well.
So, the correct answer is
The First One.