As part of your dissertation, you develop a scale to measure student perception of Facebddk trustworthiness. Your supervisor challenges whether the scale really measures trustworthiness, and not something else, such as perceived reliability or accuracy, From a research perspective, he is challenging O 1,The reliability of your scale 0 2, The validity of your scale 0 3,The plausibility of your scale 0 4. The authenticity of your scale 0 5.The critical'rty of your scale