Because they do not realize how valuable it is.
Interpretation is the explanation after understanding. It is very direct in approach and avoids the use of any passive verbs. However, in this case, the statement in <em>"Option-B"</em> is the epitome of interpretation. It is very direct in nature and can not be broken into more facts for understanding the dialogue in a better way. However, other options provided here can be broken into sections to understand a few more facts hidden in the statements.
Therefore, no other option can be counted as a correct answer to this query.