The correct answer is Devanagari. Devanagari is an abugida (a writing system in which each consonant has a inherent vowel sound, and additional diacritics are used to indicate other vowel sounds) that is used to write several languages of the Indian subcontinent, including Hindi, Marathi, Nepali, and Sanskrit. It is the official writing system of India and Nepal.
Gurmukhi is an abugida that is used to write the Punjabi language. It is the official writing system of the Indian state of Punjab.
Odia is an abugida that is used to write the Odia language. It is the official writing system of the Indian state of Odisha.
Bengali-Assamese is an abugida that is used to write the Bengali and Assamese languages. It is the official writing system of the Indian states of West Bengal, Assam, and Tripura.
Devanagari is the most widely used writing script in India, and it is also used in Nepal. It is a very efficient writing system, and it is easy to learn. It is also a very beautiful writing system, and it is used to write some of the most beautiful literature in the world.