 
 <translate> Question: The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?
Options:
(A) 7
(B) 4
(C) 12
(D) 19
(E) 28 Let's think first. Some random reasoning: <ibo> Ajụjụ: Nkezi nke nọmba 20 bụ efu. N'ime ha, ole n'ime ha ka ukwuu karịa efu? Nhọrọ: (A) 7 (B) 4 (C) 12 (D) 19 (E) 28 Ka anyị buru ụzọ chee echiche. Ụfọdụ echiche na-enweghị isi: 