Which of the following statements are true?
(a) The sandwich pattern of training for IPS probationers was introduced in 1986.
(b) The sandwich pattern of training for IPS probationers was introduced on the recommendations of the Administrative Reforms Commission (ARC).
(c) The sandwich pattern of training for IPS probationers was introduced in 1969.
(d) The sandwich pattern of training for IPS probationers was introduced on the recommendations of the National Police Commission.
1. (a), (b), (c) and (d)
2. (b) and (c)
3. (a), (b) and (c)
4. (b), (c) and (d)