Which of the following highways were built by Sher Shah?
(a) The first which ran from Sonargaon (near Dacca) via Agra, Delhi and Lahore to the Indus,
(b) The second which ran from Agra to Jodhpur and the fort of Chittor,
(c) The third which ran from Agra to Burhanpur, and
(d) The fourth which ran from Lahore to Multan.