Consider the following statements about medium carbon steel:
1. It can be quench-hardened but not case-hardened.
2. It cannot be quench-hardened but casehardening can be done.
3. It exhibits distinct yield point under tension test
Which of the following statements given above are correct?
(a) 1 and 2 (b) 2 and 3
(c) 1 and 3 (d) 1, 2 and 3