Given A=(1111)A = \begin{pmatrix} 1 & 1 \\ 1 & 1 \end{pmatrix}A=(1111), find the projection of b=(12)b = \begin{pmatrix} 1 \\ 2 \end{pmatrix}b=(12) onto the column space of AAA.
(1.5,1.5)T(1.5, 1.5)^T(1.5,1.5)T
(1,1)T(1, 1)^T(1,1)T
(2,2)T(2, 2)^T(2,2)T
(0,0)T(0, 0)^T(0,0)T