Josh had a skin fold measurement done at the gym to determine his body composition. based on what you know about this test, which of the following statements best describes the information he has learned. a. it is an easy test that is always reliable, but it provides little detail about one's body composition. b. it can be difficult to determine one's body fat because the test administrator can easily make an error. c. it measures the skin's thickness on one's leg and forearm. d. it is one of the most accurate and expensive tests available.