Find the (real) eigenvalues and associated eigenvectors of the given matrix A. Find a basis of each eigenspace of dimension 2 or larger. 15 -6 4] 28 - 11 The eigenvalue(s) is/are (Use a comma to separate answers as needed.) The eigenvector(s) is/are (Use comma to separate vectors as needed.) Find a basis of each eigenspace of dimension 2 or larger. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. has basis O A. Exactly one of the eigenspaces has dimension 2 or larger. The eigenspace associated with the eigenvalue λ = (Use a comma to separate vectors as needed.) OB. Exactly two of the eigenspaces have dimension 2 or larger. The eigenspace associated with the smaller eigenvalue λ = (Use a comma to separate vectors as needed.) O C. None of the eigenspaces have dimension 2 or larger. has basis and the eigenspace associated with the larger eigenvalue = has basis {}