若将函数y=f(x)的图象按向量a平移，使图象上点P的坐标由(1，0)变为(2，2)，则平移后的图象的解析式为(　　)

A.y=f(x－1)+2

B.y=f(x－1)－2

C.y=f(x+1)－2

D.y=f(x+1)+2

A.y=f(x+1)-2         B.y=f(x-1)-2         C.y=f(x-1)+2         D.y=f(x+1)+2

A.y=f(x+1)-2                                    B.y=f(x+1)+2

C.y=f(x-1)-2                                     D.y=f(x-1)+2

    A.y=f(x+2)-4                              B.y=f(x+2)+4

    C.y=f(x-2)-4                               D.y=f(x-2)+4