Which print cartridge recycling option does HP offer?

Which print cartridge recycling option does HP offer?
A . HP has installed recycling kiosks in Fortune 500 companies for convenient return of used supplies.
B . In each Original HP print cartridge package, HP includes prepaid shipping labels for free and convenient return of empty cartridges.
C . HP has authorized recycling partners in more than 50 countries that will send brand new ink cartridges when customers return empty ones.
D . In some countries, HP customers can order free recycling envelopes and boxes with pre-paid shipping.

Answer: D