Match the functions with their graphs. Enter the letter of the graph below which corresponds to the function.

 1. $f(x)=-\ln(-x)$
 2. $f(x)=\ln(-x)$
 3. $f(x)=2+\ln x$
 4. $f(x)=\ln(x-2)$
 5. $f(x)=\ln(2-x)$

A.
B.
C.
D.
E.