The answer is B. MN = 11, LN = 19.
1. Recall the segment - addition postulate:
The segment - addition postulate states that if we have three collinear points , , and , then .
From the figure, we know that the length of the segment is .
2. Analyze each option:
A: If and , then by the segment - addition postulate . Substituting the values, we get , which is . So, option A is incorrect.
B: If and , then by the segment - addition postulate . Substituting the values, . This option satisfies the segment - addition postulate.
C: If