The correct word in the set would be ingenious.
The telephone is an ingenious invention. That means that it is very clever or innovative.
Ingenuous means innocent, sincere.
It could be
obsession. As obsession is defined as the reoccurring mental thought or idea of
something. This obsession has caught you up or to overthink. For instance in a
situation that has caught you up, you engross yourself with it. Overthinking like
obsession is a mental act or a cognitive resonance which is still different
from behavior or compulsion, as the word for it.
Answer:
1. Abhay's book has been stolen.
2. These boys aren't interested in football.
3. We're excited about the trip to Mahabalipuram.
4. Mr Singh can't come to the meeting today.
5. Deepika isn't the captain of our basketball team.
6. These chocolates look expensive. They're definitely worth more than a hundred rupees.
7. Mrs Jain won't be discharged from the hospital today.
8. Where is Anuja's bag?
Part A) Egyptians built the pyramids.
Part B) The other cites three specific details