a compression test specimen has Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â cross section

a compression test specimen has Â Â Â Â Â Â Â Â Â �

1.	a compression test specimen has Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â cross section
A.	square
B.	rectangular
C.	circular
D.	all of the above
Answer» E.