Answer:
Imagination is abstract
Invention is abstract
Key is concrete
Explanation:
Naming words for concrete bodies are concrete nouns
While abstract terms are represenred by abstract nouns
1. The property of crime victims are put on display.
2.The level of birth defects from these drugs are not yet known.
3.The number of people with serious chronic conditions like diabetes or cancer are increasing.
The answer is d. Marley or Fred speak to scrooge