Question

Need help ASAP
Assume segment MP is a median. According to the definition of a median, point P is the midpoint of side L N. By the definition of a midpoint NP = LP. This contradicts the given statement. Therefore, segment MP is not a median.
Is the indirect proof logically valid? If so, why? If not, why not?
Yes. Statements are presented in a logical order using the correct theorems.
Yes. The conclusion was used to contradict the assumption.
No. The conclusion was used to contradict the assumption.
No. The progression of the statements is logically inaccurate.