Match List-I with List-II and select the correct answer using the codes given below the lists:
List I (Standard tooth, forms)
(A) 20° and 50° system
(B) 14½ stub-tooth system
(C) 25° Full depth system
(D) 20° Full depth system
List-II (Advantages or disadvantages)
1. Results in lower loads in bearing
2. Broadset at the base and strongest in Bending
3. Obsolete
4. Standards for new applications
Codes:
A B C D
(a) 4 3 2 1
(b) 3 1 2 4
(c) 3 2 1 4
(d) 4 2 3 1