Answer:
Because they need to confirm the effectiveness of their skills within the learning process by which they have been submitted.
Step-by-step explanation:
In order to obtain the NSC, the student must prove that he / she has been submitted to an efficient learning process that has promoted a broad, challenging and constructive knowledge that allowed the acquisition of relevant and necessary skills. To be able to prove this, it is necessary that students continuously reflect on their study skills, strategies and styles, being able to recognize their flaws and qualities and looking for ways that optimize their academic abilities, allowing them to be recognized for obtaining the NSC.