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
caused embarrassment - The word mortify means to cause someone to feel embarrassed or humiliated. So when Janis found out that her brother had read her diary, she felt embarrassed, or rather, she felt like her brother's actions were purposely intended to make her feel embarrassed and ashamed. The word mortify is derived from the latin word mortificare, meaning to put to death. In most contexts it signifies making someone to want to die of embarassment.
I think it is the first one
It A strong people can bring about great change