Option b is the correct answer. Statement 1 is correct- Akbar have the Agra Fort with red sandstone constructed during the 1560s. The construction of the fort started in 1565 and continued for several years. It served as an important military and political center during Akbar's reign. Statement 2 is correct- In the 1570s, Akbar made the decision to build a new capital at Fatehpur Sikri, which is located near Agra. He wanted to create a planned city that would reflect his vision and ideals. The construction of Fatehpur Sikri began in 1571 and continued for around 15 years. Statement 3 is correct-Akbar commissioned the construction of a white marble tomb for the Sufi saint Shaikh Salim Chishti at Fatehpur Sikri. The tomb located within the quadrangle of the Jama Masjid, is a significant architectural masterpiece and is considered a symbol of Akbar's religious tolerance and reverence for Sufism. Statement 4 is incorrect- In 1585, the capital was relocated to Lahore instead of Agra in order to enhance control over the northwest region, and Akbar diligently monitored the frontier for thirteen years.