Transaction Processing Concepts, Concurrency and Recovery

What is the difference between the partially-committed state and the committed state? A. In partially-committed state, system failure will result in aborted transaction. In committed state, transaction concludes execution successfully. All changes are recorded permanently in database. B. Partially-committed state is when a database is doing more than one read write from different locations and committed state is from one location C. In a fully commited state all data is saved to the database and querying data will not result in errors. A partially committed transaction will produce invalid results. D. Partially-committed state data and ops are stored in a log in case disaster recovery is needed. Committed state data is stored to the disk. E. Committed state is stable because all changes by transactions are written permanently. Partially-committed state is unstable because changes by transactions can be rolled back