1. Present simple tense: The answer consistently uses the present simple tense (e.g., "Advertising plays a huge role," "Companies use clever marketing") to talk about general truths and habits, which is appropriate for this type of question.
2. Complex sentences: The use of clauses like "even if they're not" and "as they often promote trendy items that make people feel like they need to have them" adds complexity and shows a good command of sentence structure.
3. Passive voice: The phrase "products seem essential" uses the passive structure, which is a more advanced grammatical feature.
4. Gerunds as subjects: "Advertising" and "marketing" are used as gerunds to start sentences or clauses, demonstrating flexibility in grammar.