In engineering the design process begins when a: information about an existing product is gathered by engineers b: and engineering design team comes up with ideas for a new product c: a design engineer recognizes the need for a solution to a problem

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.