__________ are used to ensure that transactions access each data item in order of the transactions‚Äö√Ñ√∂‚àö√ë‚àö¬• ____ if their accesses conflict.$

__________ are used to ensure that transactions access each data item

1.	__________ are used to ensure that transactions access each data item in order of the transactions‚Äö√Ñ√∂‚àö√ë‚àö¬• ____ if their accesses conflict.$
A.	Zone
B.	Relay
C.	Line
D.	Timestamps
Answer» E.