Im not sure if its nouns...
I think it is A. was waving at the flag. This is just my opinion is I may be wrong. Please feel free to correct me in the comments. Have a nice day!
The correct answer is the role of adjective. Both non-finite verbs can perform the role of adjective in a sentence. The following examples show this role:
Present participle as adjective, which can be recognized from its "-ing" ending:
Look at the <u>reading</u> boy.
Past participle as adjective, which are formed by adding "-ed" to the verb:
Look at the <u>washed</u> car.
1.After this bridge is built, our crew will move to another city.
2. My daughter is still considering to register for that carbs course.
3.Its nice I am now in London again. This is the second time I am here.
4. She blamed her classmate for losing the race yesterday.
5. Paris is known as the capital of light for ages.
Answer: in conclusion corona virus
is a disease that has effected many people around the world where we live.
Explanation: