(b) 4 parallel processes are working on a set of variables in a data store. At timestamp 4, P1 initiates the variable x. At timestamp 8 P2 updates x by 3, At timestamp 12 P3 multiplies x by 3 and at...

(b) 4 parallel processes are working on a set of variables in a data store. At timestamp 4, P1 initiates the variable x. At timestamp 8 P2 updates x by 3, At timestamp 12 P3 multiplies x by 3 and at Timestamp 16 P4 divides x by 2. Explain the consistency policy to ensure that all processes see the new value.