Correct Answer: fg @

Solution : Given:
(I) Tings are black red is coded as pr 6 @ rm
(II) Black yellow creatures is coded as fg rm 9
(III) Hinge are creatures is coded as @ lp fg.
→On comparing the sentences, I and II black, and rm are common.
→On comparing the sentences, I and III are, and @ are common.
→On comparing the sentences, II and III creatures, and fg is common.
→ I n sentence I tings, red and pr, 6 are remaining, In sentence II yellow and 9, are remaining and in sentence III hings and lp are remaining.
Thus, the codes of given words in the sentences are: black→ rm , are→@ , creatures→fg , yellow→9 , tings→either pr or 6 , red→either pr or 6 , hings→lp .

So, creatures are coded as fg @ . Hence, the third option is correct.