What are some the benefits of the Agile development methodology  A. Everyone knows the exact progress that will happen and people can contribute however they feel fit. B. Things move quicker and people can be done with their one job really fast. C. People can be very specialized in the part of the project they do and things are easier to manage. D. It allows people to contribute to more than one part of a project and more people can contribute to each other

Dereck works for long hours on his computer.  he frequently experiences physical strain by the end of the day because he does not follow an important rule of ergonomics with respect to the use of keyboards.  which of the following actions of dereck could lead to physical strain? a.  placing the keyboard exactly in front of him while typingb.  keeping hands and wrists straight while typingc.  using wrist pads throughout the dayd.  pounding at the keys on the keyboard while typinge.  resting his hands on the keyboard when he is not typing