3M Inventor,David Windorski Took This Approach When He Developed the Post-It

Multiple Choice

3M inventor,David Windorski took this approach when he developed the Post-it Flag Highlighter:

A) He first asked students to identify their needs and wants.
B) He asked students to bring him their five favorite office product items they used for studying.
C) He patented his idea and sold it to 3M.
D) He started with his idea and then investigated if there was a market for it.
E) He petitioned 3M executives for the right to conduct independent research that ultimately resulted in the 15% rule.