The correct option is;

Here, we want to know the expression that corresponds to the given expression
What we have to do here is to simplify the given expression by adding like terms
We have this as;

Now, which of the options is same as this?
Let us take a look at the last
If we added all we have in the first bracket, we have (17)m which is 17m
For the second bracket, that will be 34 + 23 = 57
So, the last expression is the correct answer