What will be the output of the following MySQL command?

SELECT fname
FROM person
WHERE emp_id != 6;

This question is asking about how the MySQL command will filter data. Let's break it down:
The Command:
```sql SELECT fname FROM person WHERE emp_id != 6; ```
Explanation:
* SELECT fname: This part tells MySQL to pick out the values in the column named "fname" (which probably means "first name").
* FROM person: This tells MySQL to get the data from a table called "person".
* WHERE emp_id != 6: This is the important part! The "WHERE" clause filters the data. The "!=" symbol means "not equal to". So, this line tells MySQL to only show the "fname" values where the "emp_id" is *not* equal to 6.
Answer:
The correct answer is Option A: Only those names whose emp_id is not equal to 6.
The command will display all the first names (fname) from the 'person' table where the employee ID (emp_id) is *different* from 6.