For allt e R consider the triangle having vertices in P = (3, 2,1). P = (t, 1, 1), Ps (1,2, t). %3D %3D Which of the following statements is true? O (a) There is no value of t such that the edges P P, and P Pa are orthogonal. (b) The edges P P, and PP are orthogonal for t 3 (C) The edges P P, and P P, are orthogonal for two different values of t. (d) The edges PP, and P. P, are orthogonal for at least one value of t