Correct option is C
Statements:
All bins are plastics
Some plastics are nylon
Some nylons are green

Conclusions:
(I) Some nylons are plastics - True (some common area is given between them)
(II) All plastics are bins - (False, all the area of plastic is not inside of the area of bin)
(III) Some greens are nylons - (True, some common area is given between them)
Only I and III follows.