\eqalign{ & \frac{{4.2 \times 4.2 - 1.9 \times 1.9}}{{2.3 \times 6.1}}\, \cr & {\text{is}}\,{\text{equal}}\,{\text{to:}} \cr} $$?

\eqalign{ & \frac{{4.2 \times 4.2 - 1.9 \times 1.9}}{{2.3 \times 6.1}}

1.	\eqalign{ & \frac{{4.2 \times 4.2 - 1.9 \times 1.9}}{{2.3 \times 6.1}}\, \cr & {\text{is}}\,{\text{equal}}\,{\text{to:}} \cr} $$?
A.	0.5
B.	1.0
C.	20
D.	22
Answer» C. 20