During lunch, you have leftover food (peels, bread) and a plastic bag. To protect the environment and keep sanitation high, how should you dispose of these?
a) Mix them together and throw them in the blue bin.
b) Put the food in a blue bin and the plastic in a green bin.
c) Put the food in a green bin (wet waste) and the plastic in a blue bin (dry waste).
d) Throw both in the trash can