compute mapping matrix between two label matrix

I have a label matrix A, another label matrix B:

A = [1 1 1 2 3 3
     1 1 2 2 3 3
     4 1 2 2 3 3
     4 4 5 5 5 5]

B = [10 10 12 12 12 11
     10 10 12 12 11 11
     14 14 12 11 11 11
     14 14 7 7 7 12]

how can I compute a mapping matrix C such that C(A) is most similar to B. Each C(i) should take the major element of B(A==i). For example,

C = [10 
     12
     11
     14
     7]

% means 
% for B(A==1), most elements are 10.
% for B(A==2), most elements are 12.
% for B(A==3), most elements are 11.
% for B(A==4), most elements are 14.
% for B(A==5), most elements are 7.

Answer 1

[Muthu Annamalai]

Try using the MATLAB function mode e.g.

mode( B(A==1) )

returns 10.