Let F(n)=A(n) , G(n)=W(n)
Rule :- For Omega :- F(n)>=cG(n)
Option A - A(n)=Ω(W(n)) it means A(n)>=cW(n) , which is false becoz Worst case time can not be less than avg case time.
Rule :- For Theta :- c1G(n) <= F(n) <= c2G(n)
Option B - A(n)=Θ(W(n)) it means c1W(n)<=A(n)<=c2W(n) , Which can not be always true. (i.e it is false due to Bold markd line.. )
Rule :- For Big Oh :- F(n)<=cG(n)
option C- A(n)=O(W(n)) it means A(n)<=cW(n) , which is always true........
options D:- I dont know..