Consider an nxn(n>1) matrix A, in which A, is the product of the indices i and j (namely A,, -ij). The matrix A (a) has one degenerate eigevalue with degeneracy (n-1) (b) has two degenerate eigenvalues with degeneracies 2 and (-2) (c) has one degenerate eigenvalue with degeneracy n (d) does not have any degenerate eigenvalue