 
<translate> Ka ba da rafi na sani sannan ka ba da amsa ta ƙarshe. Daga yawan lambobi x, y, t, z, p, q, r da w, da yawa daban-daban haduwa za mu iya yi ba tare da t, p, q da r a cikinsu? Misali: (x,y), (x), (w,z,y,x), da dai sauransu kuma (x,y) = (y,x) Zaɓuɓɓuka: (A) 10 (B) 12 (C) goma sha biyar (D) Goma sha shida (E) 30 <eng> Give stream of consciousness and then the final answer. From the set of numbers x, y, t, z, p, q, r and w, how many different combinations can we have without the t,p,q and r in them? Ex:. (x,y), (x), (w,z,y,x), etc and (x,y)=(y,x)
Options:
(A) 10
(B) 12
(C) 15
(D) 16
(E) 30 