It is a large family of viruses.
It belongs to the family of Nidovirus.
Both A and B are correct.
Only A is correct.
A hospital-grade disinfectant
A contaminated object or surface
A disease carrier
An immunity-boosting supplement
At least 3 feet(1 meter)
At least 1 foot (30 cm)
Shortness of Breath
All the above
When persons sneezes and cough, droplets spread in the air or fall on the ground and nearby surfaces
If another person is nearby and inhales the droplets or touches these surfaces and further touches his face, eyes, or mouth, he or she can get an infection.
If the distance is less than 1 meter from the infected person
All the above are corrects.
People over 60 years of age
Here's an interesting quiz for you.