If Daphne is using the very first OS by Microsoft, then she would be using A. MS-DOS.
What was MS-DOS?
- Microsoft operating system released in 1981.
- Dominant system used by Microsoft in the 80s.
MS-DOS may no longer be in use, but it inspired a new age of computers and allowed Microsoft to gain a lot of market share in the computer industry.
In conclusion, option A is correct.
Find out more on Microsoft OS at https://brainly.com/question/13604550.
