How do I put all the Outputs from the iterations of a For Loop into a Row Vector?

I want to take the maximum value of every row in the matrix A and put them into a vector assigned to variable C. Here's what I have done so far:

A = [1 2 3 4; 8 7 6 5; 9 10 11 12]
  numrows = height(A)
    for x = 1:numrows
        B = max(A(x,:))
    end

This is what C should be:

C = [4 8 12]

I have no idea where to start for C. All I know is it is not C = B even if outside or inside the loop.

If there is a name of a topic that deals with putting outputs from a for loop into an array, I would greatly appreciate being referred to a link where I can read about it. Other answers that do not involve loops are also OK. Many thanks :)

Answer 1

[Walter Roberson]

Assign to B(x) instead of B

Answer 2

[Mahmoud Ashraf]

A = [1 2 3 4; 8 7 6 5; 9 10 11 12]
  numrows = height(A)
    for x = 1:numrows
        B = max(A(x,:))
        c(1,x)=B
    end