The correct option is
E Cannot be determined
In the first and second sentences, banks is common on the left and side, while on the right hand side, Ki is common, this means that Ki is used for banks. Similarly, from first, third and fourth, Zi is used for today. From first and third, Ti is used for digital.
From second and third, Si is used for money. So, Li is used for are. Fi and Di can be used for transfer or through.
And, Bi is used for easy.
Now, as we already know that ki is used for banks, Gi for money therefore, Gi is used for have.
Looking at the last sentence, one out of Xi and Vi is the code for leave, as both these are options, we cannot determine the correct one. So, option E is correct.