Which of the following statement(s) is/ are found to be correct? I. Mughal rule under Jahangir was noted for political stability brisk, economic activity, beautiful paintings and monumental building. II. Shahjahan, with his brilliant administrative skills, came out successful against all the adversities and went on to consolidate his empire. III. Shahjahan's reign is said to have marked the pinnacle of the Mughal dynasty and empire in terms of the promotion of art, culture and architecture.