The composition DO,0.75(x, y) ∘ DO,2(x, y) is applied to △LMN to create △L''M''N''.

On a coordinate plane, triangle L M N has points (negative 1, 2), (negative 1, negative 1), and (2, negative 1).

Which statements must be true regarding the two triangles? Check all that apply.

∠M ≅ ∠M''
△LMN ~ △L''M''N''
△LMN ≅ △L''M''N''
The coordinates of vertex L'' are (-3, 1.5).
The coordinates of vertex N'' are (3, -1.5).
The coordinates of vertex M'' are (1.5, -1.5).