Answer:
a. green house project
Step-by-step explanation:
The Green House Project is an association based in the USA, whose main objective is to create alternatives for nursing homes where elderly people are left to receive proper care.
The Green House Project intends to create non-traditional retirement homes, but that promote greater comfort for the elderly who are living there, establishing a more intimate place and promoting an atmosphere of home and home environment, which can be lost in traditional retirement homes.