Who amongst the following introduced the Gurmukhi script?

Chronologically arrange the conquest of Mahmud Ghazni in India:

I. Multan

II. Punjab

III. Kashmir Codes

IV. All of these

Consider the following statements concerning the conquest of Punjab by Muhammad of Ghor:
I. In AD $1173,$ Shahab-ud-din Muhammad ascended the throne of Ghazni.
II. He led his first expedition against Multan.
III. He realised the necessity of creating a suitable base in Punjab before venturing on the further conquest of India.
IV. He was unable to conquer the fort of Sialkot and Debol.
Which of the statement given above are correct?

Match the following