Hello. You did not inform the text to which this question refers, which makes it impossible that the critical approach that the author used can be pointed out. However, I will try to help you as much as I can.
Critical approaches are the position of a literary critic in relation to a literary work. This approach aims to analyze, question and interpret this work, concluding the concepts covered by it, its relevance in society and its ability to meet the grammatical and literary principles of language. In order to understand which approach the critic used, it is necessary to find his position in relation to these concepts discussed above.
A critic who decides to make a criticism in relation to the way of writing a work, adopted an approach in relation to grammar and textual structure, for example.
