Read the following passage: 'Hadoti is comprised of four districts of Rajasthan - namely Baran, Bundi, Jhalawar and Kota. It is said that Hadi Rani, a legendary character, was married to the Chundawat chieftain of Salumber. The chieftain loved her so much that he felt reluctant to go to the battlefield. Hadi Rani persuaded him to comply with his duty towards his motherland, but for her love he would not agree. Somehow he agreed. Before leaving the house, he sent a man to his beloved to ask for a memento. Out of sheer devotion, Rani Hadi cut her head off her neck and sent it to him.' Question: What was the memento that Hadi Rani sent?

Choose the correct article for the blank: 'A computer is ____ electronic device which stores information in it.'

Choose the correct article for the blank: 'The battalion had to march through ____ hot sand of the desert.'

Choose the correct preposition for the blank: 'The bhikshu was silent ____ a long time.'

Choose the correct preposition for the blank: 'Divide these chocolates ____ the students of class 8th.'