(a) The security Council first discussed the issue of Jammu and Kashmir in 1948
(b) A summit meeting took place in 2004 in Islamabad between A.B. Vajpayee and Pervez Muzharraf
(c) A bus service across the ceasefire line was inaugurated in 2006
(d) Terrorist attack on Samjhauta Express was made in 2007
Choose the correct options :