Which of the Following Best Illustrates a Strategic Business Unit

Which of the following best illustrates a strategic business unit (SBU) ?

A) The human resource department of a large company that is responsible for hiring employees for all its divisional branches
B) The consumer electronics division of a large company that also manufactures automobiles, apparel, and processed food
C) The product development team at the headquarters of a fast-food chain
D) The market segment which can be categorized between the income levels $10,000 and $25,000