I need help with this question

Answer:
D. [tex] \overline{LN} [/tex] and [tex] \overline{LM} [/tex] ; [tex] \overline{MN} [/tex]
Step-by-step explanation:
The size of an angle corresponds to the side length opposite it. That is, if the measure of an angle is large, the length of the side opposite will be similarly large and vice versa.
In the figure given, ∆LMN has two equal angles and a third angle which is the smallest. This means it would have 2 longest angle if equal length, and a third shorter side length.
<L = 40°, has a side MN opposite it, therefore, this is the shortest side in the triangle.
<M and <N = 70°, and have sides LN and LM opposite them respectively. Therefore, these two sides are the longest side.
The answer is D. [tex] \overline{LN} [/tex] and [tex] \overline{LM} [/tex] ; [tex] \overline{MN} [/tex]