22. In January, the new CDs of the bands 4U2Rock and The Kicking Kangaroos were released. In February,the CDs of the bands No One’s Darling and The Metalfolkies followed. The following graph shows thesales of the bands’ CDs from January to June. 

 How many CDs did the band The Metalfolkies sell in April?

(A) 250
(B) 500
(C) 1000
(D) 1270