I need help with #4.

3. 20pts Suppose that three consistency constraints on a database are: Tell whether each of the following independent transactions traces preserves consistency if they were be executed completely. 25pts For each of the transactions in Question 3, add the read and write actions to the computation and show the effect of the steps on the main memory and disk. Assume initially that (A,C,X]-5 and (B,D,Y)-10 on disk. 4. 3. 20pts Suppose that three consistency constraints on a database are: Tell whether each of the following independent transactions traces preserves consistency if they were be executed completely. 25pts For each of the transactions in Question 3, add the read and write actions to the computation and show the effect of the steps on the main memory and disk. Assume initially that (A,C,X]-5 and (B,D,Y)-10 on disk. 4