# Question 1 of 50

The following figure is made up of 4 identical rectangles and a shaded rectangle shaded rectangle The length of BC is 14 cm. if the area of shaded part is 21 cm$^2$. What is the length of EB?

A
4.0cm
B
4.5cm
C
5.0cm
D
5.5cm
E
None of the above