54As already stated in paragraph 29 of this judgment, the requirement to state reasons must, first, make clear and unequivocal the reasoning of the EU institution concerned which is the author of the act, so as to enable the persons affected to know the reasons for the measure taken and the competent court to exercise its review, and, second, be assessed in the light of all the circumstances of the case, in particular the content of the act, the nature of the grounds relied on and the interest which the addressees of the act or other persons directly and individually concerned by it may have in receiving explanations. Consequently, it is in the light of the purpose of that requirement and of all the abovementioned factors that the statement of reasons of a decision may be considered either absent or inadequate.