Algoritmo: donde no se conoce la edad de pedro, solo sabemos que juan es menor que pedro, este algoritmo debe decir cual es la edad de juan

A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?