9.4 Assume the following transactions are to be performed. Transaction S: read(a); a= 0+10; write(a); read(b); b=b85; write(b); Transaction T: readlo); a=02; write a; a. If the initial value of a is 10 and the initial value of bis 20, what are their final values if we perform the transactions serially, using order S,T? b. Using the same initial values, what are the final values of a and b if the order of execution is T.S? C. Does this result have any implications for serializability