On activation of --------,8255 loads data from the input port lines into the input buffer of that port

On activation of --------,8255 loads data from the input port lines i

1.	On activation of --------,8255 loads data from the input port lines into the input buffer of that port
A.	stb\
B.	ibf
C.	obf\
D.	none
Answer» C. obf\