The sentence that we need to accommodate is: This was years in the making but fast-tracked during the pandemic, when “people started being more mindful about their food”, he explained. Here, we have to use the contextual reference. The pronoun ‘he’ in the phrase ‘he explained’ refers to some person, and this person must be introduced. After position 2, we have Karamakar as the person who seems to be talking about something. So, after position 2, we can fit the sentence either at position 3 or position 4. 3 is the right position because in the sentence before position 3, we have ‘a renewed interest in ghee’. The pronoun ‘this’ in the phrase ‘this was years in the making’ refers to ‘a renewed interest.’ Thus 3 is the best position in which we can fit the sentence.