Final answer:
The correct answer is c) n<0, −n<0. The number line diagram shows a horizontal line at some negative value, indicating that both n and −n are negative.
Step-by-step explanation:
The correct answer is (c) n<0, −n<0.
The number line diagram shows a horizontal line at some negative value. This means that n is less than zero. Since the line is horizontal, it means that −n is also less than zero. Both n and −n are negative.
For example, if the line is at -2, then n would be any number less than -2, such as -3 or -4. And −n would be any number less than 0 but greater than -2, such as -1 or -1.5.