Question: What does copy on write (COW) mean?
| A | Each copying operation is accompanied by a write operation | B | It's the opposite of copy on read |
| C | Lazy copy: As long as a copy stays identical to original, read-only reference to original serves as 'copy' | D | Eager copy: Write operation is 'on' for copying |
| E | Each write operation is accompanied by a copying operation | ||