Which of the Following Statements Describes an Environmental Force

Which of the following statements describes an environmental force?

A) Several states have legislation that requires people transporting children to use age- and height-appropriate car seats.
B) Tupperware has more than 200,000 independent dealers who market its entire product line.
C) A car battery comes with a lifetime guarantee.
D) An automobile dealer offers a $500 rebate during the month of July.
E) A major bottler offers a 10-cent refund on returnable bottles.