‘The state of stress during deep drawing forming operation of a cup is

A

In the flange of blank, uni-axial compression and in wall of cup, bi-axial tension and compression

B

In the flange of the blank, uni-axial tension and in wall of cup, bi-axial tension and compression

C

7 the flange of the blank, bi-axial tension and compression and in the wall of ¢simple uni-axial tension

D

Both flange and wallof the cup will have bi-axial compression and tension