 
 <translate> Give stream of consciousness and then the final answer. The average of seven numbers is 21. The average of first three numbers is 19 and the average of last three numbers is 23. What is the middle number?
Options:
(A) 20
(B) 22
(C) 18
(D) 19
(E) 21 <hau> Ka ba da rafi na sani sannan ka ba da amsa ta ƙarshe. Matsakaicin lambobi bakwai shine 21. Matsakaicin lambobi uku na farko shine 19 kuma matsakaicin lambobi uku na ƙarshe shine 23. Menene lambar da ke tsakiya? Zaɓuɓɓuka: (A) 20 (B) 22 (C) 18 (D) 19 (E) 21 