Answer:
b) 
 irrational
 irrational 
Explanation:
We are given two irrational numbers 
 and
 and 
 and asked to find their sum and determine whether the result is rational or irrational.
 and asked to find their sum and determine whether the result is rational or irrational.
Let us first simplify the first irrational number 


Therefore 

Now 


Which is again an irrational number. 
Hence our option B is correct