Write a program that takes user inputs so that the output is price. Male customer: Female Customer: Boys (age ≤ 13): $10 Girls (age ≤ 13): $12 Men (age > 13): $15 Women (age > 13): $25 Based on the information the user enters, the output should be a total cost only.

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?