IV
III
II
I
Explanation
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Discussions (33)
point of order, (i) isn't silk thread/silk girdle, it is the wing... but because; the antenna is close to it [(denoted by those dots close to (i) ] and the antenna Is used for feeling... we pick D as the answer
ii) this is the silk thread/girdle (its even obvious,at least from the structure)
iii)this is the spiracle (pores used as pathways for respiration)
iv) Anchor/claspers... as shown above, the chrysalis is sort of attached to the twig at that area... that's why it's called an anchor/clasp
i hope this helps... please correct me, where necessary 
I. is the antenna
II. is the silk tread with which it holds itself to the twig
III. is the spiracle
IV. is the adhesive pad for development of the genitals
D Is correct
i.Slik thread
ii.Thorax
iii.Fore wing
iv. Anchor
I think the answer is (i)
