What Is the Main Reason That a Vague Statement of Implications

What is the main reason that a vague statement of implications should not be used in the abstract?

A) Implications are not part of the original research summarized in the abstract.
B) Implications are too complex to fit into a short format of the abstract.
C) Researchers can rarely assess the implications of their study correctly.
D) The readers do not have much interest in research implications.