Since the expression lighthearted means happy and not worried. The correct answer is A, the article is not serious. It is understood that the article was written with a light mood and intended to be read easily and not heavy.
The sentence that best matches as a synonumous of the phrase lighthearted article to describe the text is:
A) The article is not serious
Explanation:
Two major points explain this, first of all lighthearted is the expression to describe that the article has no valid or relialbe arguments or evidence that can build a strong background for the posture of the article. Second, that lighthearted also means the author only used his believes to back his argumentation. We in academy know that this is not objective, therefore it can't be considered knowledge.
