Tatsouka 2009

What is the value of $4$ $\dfrac{4}{6}$ $-$ $1$ $\dfrac{2}{9}$?
A. $3\dfrac{4}{9}$
B. $\dfrac{2}{5}$
C. $\dfrac{6}{5}$
D. $1$
E. $\dfrac{17}{9}$