The correct option is (A) DEF
Explanation:
For similarity, one triangle has to be at least the scaled version of another. In the triangles given above as you can see:
The length of DE ( in DEF) = 5.5
The length of AB (in ABC) = 11 which is 2*(The length of DE ( in DEF))
Likewise
The length of EF( in DEF) = 2.5
The length of BC(in ABC) = 5 which is 2*(The length of EF ( in DEF))
Same goes for the third side.
Hence the correct option is (A) DEF
