The correct answer is D. Concrete thinking
Explanation:
Concrete thinking focuses on reality or objects that can be seen, touched, etc. This type of thinking differs from abstract thinking because in abstract thinking the individual connects ideas more deeply going beyond the elements he/she can see, touch, etc. Abstract thinking normally develops during adolescence; however, it is common for patients with schizophrenia or similar mental disorders have deficits in abstract thinking.
This can be seen in Daria because instead of understanding "strike while the iron is hot" means to take advantage of opportunities, she can only think about a clothes iron that is a concrete object and due to this she answers "you cannot iron clothes with a cold iron". Therefore, Daria's response shows concrete thinking as she understands the world based on concrete object or reality she can touch, see, etc.
