请教GWD数学第5套第8题

Note:  Figure not drawn to scale.

The figure above represents a square garden that is dividedinto 9 rectangular regions with indicated dimensions in meters.  The shaded regions are planted with peas, andthe unshaded regions are planted with tomatoes. If the sum of the areas of the regions planted with peas is equal to thesum of the areas of the regions planted with tomatoes, what is the value of x?

A.    0.5

B.     1

C.     1.5

D.    2

E.     2.5