In the courtroom, lawyers use to explain their client's actions and to prove guilt or innocence.
a. assumptions; reasoning
b. evidence; viewpoints
c. viewpoints; reasoning
d. reasoning; evidence

The answer would be : Reasoning ; evidence

Lawyers use reasoning so the their clients' argument could be positively accepted by the judges and juries

And they use Evidence to basically remove everything that could erase the connection between the clients with the crime and prove their innocence

Is this a question? its more of a statement