Answer:
If your amputated finger can be saved, you may need microsurgery. Your doctor will sew together the nerves, blood vessels, and tendons inside your finger. This helps to keep your finger alive and heal well after it's reattached.
Explanation:
does this help? :)
Answer:
D it is airborne it floats in the air and causes the allergy
Explanation:
Option 1 is 
Property is : 
So, 
Option 2 is 
We can write it as : 
Option 3 is 
Property is : 
So,

It is clear that option a and c are same. But option b is different.