<image>Maria colours exactly 5 cells of this grid <image1> in grey. Then she has her 5 friends guess which cells she has coloured in and their answers are the five patterns $A, B, C, D$ and $E$. Maria looks at the patterns and says: "One of you is right. The others have each guessed exactly four cells correctly." Which pattern did Maria paint?
A. A
B. B
C. C
D. D
E. E