Which of the Following Is an Example of Functional Planned

Which of the following is an example of functional planned obsolescence?

A) A new-model camcorder that allows the operator to view a color picture in the viewfinder (older models were only visible in black-and-white)
B) Recycled paper used in a textbook to increase the appeal of the text to both faculty and students
C) A disposable razor designed specifically for business people who travel and for tourists
D) Double-breasted suits that have been heavily promoted in men's clothing magazines