Consider the following statements:
The assignment problem is seen to be the special case of the transportation problem in which
(The symbols have the usual meaning)
1. m = n
2. all ai = 1
3. xij = 1
Which of the statements given above are correct?
(a) 1, 2 and 3 (b) 1 and 2 only
(c) 2 and 3 only (d) 1 and 3 only