If the perimeter of a rectangular garden is 800 m, its length when its breadth is 100 m is?	Select the correct option.
A) 286 m
B) 899 m
C) 300 m
D) 166 m
E) 187 m

Rationale: "2 ( l + 100 ) = 800 = > l = 300 m answer : c"
Answer: C