Option c is the correct answer Most of the Harappan seals have inscriptions in a pictographic script which is yet to be deciphered. The script was written mostly from right to left, but, bidirectional writing style i.e. right to left on one line and left to right on another line has also been found. Animal impressions were also there which were carved intaglio on the surfaces. The common animal motifs were unicorn, humped bull, rhinoceros, tiger, elephant, buffalo, bison, goat, sheep, markour, ibex, crocodile, etc. Horse is not depicted on Harappan Seals.