Match List I (Operation) with List II (Explanation) and select the correct answer:
List I List II
A. Beading 1.The edge of the sheet metal is bent into the cavity of a die
B. Flanging 2.The process of punching a hole first and then
expanding into a flange
C. Hemming 3.The edge of the sheet metal is folded over itself
D. Roll Forming 4. Bending continuous lengths of sheet metal
5. The process of bending the edges of sheet metals
A B C D
(a) 1 5 3 4
(b) 4 2 1 3
(c) 1 2 3 4
(d) 4 5 1 3