On a straight road, there are two lamp posts of heights 3 and 5 meters with a distance of 9 meters between them, and a rod of height 1 meter located between these posts, as shown in the figure.
The lengths of the shadows created by the lamps on the posts on both sides of the rod are equal to each other.
Accordingly, what is the length of the shadow created by one of the lamps in meters?
A) 1\\
B) 1.2\\
C) 1.5\\
D) 1.8\\
E) 2