Several Values of Two Functions T and S Are Listed $( S \circ S ) ( 3 )$

Multiple Choice

Several values of two functions T and S are listed in the following tables: t
0 1 2 3
T(t)
2 3 1 0
X
0 1 2 3
S(x)
1 0 3 2
Find: $( S \circ S ) ( 3 )$

A) $( S \circ S ) ( 3 ) = 0$
B) $( S \circ S ) ( 3 ) = 3$
C) $( S \circ S ) ( 3 ) = 2$
D) $( S \circ S ) ( 3 ) = 1$
E) not possible