In the diagram below, a lab spectrum and the observed spectra of three objects are given. The three lines visible in each object's spectrum are the same set of spectral lines as in the lab frame spectrum, but shifted due to the motion of the objects. Based on this, which object is moving away (radially) from us at the highest speed? Laboratory spectrum Lines at rest wavelengths. Object 1 Object 2 Object 3 shorter > longer > (A) Object 1 (B) Object 2 (C) Object 3 (D) They are all moving away from us at the same speed. (E) They are all moving towards us at the same speed.