You lost a temporary file that belongs to the default temporary tablespace in your database. From the options provided， which approach would you take to solve the problem？（）
- A flash back the database
- B import the temporary tablespace from the last export
- C restore all the data files and temporary files from the last full database backup and perform a recovery
- D not perform a recovery， but create a new temporary tablespace， make it the default temporary tablespace and then drop the old tablespace