This diagram shows an example of memory configuration under dynamic partitioning after a series of insert and replace operations has been performed. Addresses go from left to right; gray areas show blocks occupied by transactions; white areas indicate free memory blocks. The last commit placed is 2 Mbytes and is marked with an X. Only one transaction has been changed since then. a. What was the maximum size of the modified process ? b. Just before partitioned by X total null What was the block size