The correct answer is B. 16 Ohms.
A speaker is an electrical device that converts an electrical signal into sound waves. The resistance of a speaker is the opposition to the flow of current through it. The resistance of a speaker is typically measured in ohms.
When testing a speaker in a computer, the resistance should be displayed as 16 ohms. This is because the speaker is designed to work with an impedance of 16 ohms. If the resistance is not displayed as 16 ohms, then the speaker may be damaged or not working properly.
Option A is incorrect because 0 ohms would indicate that there is no resistance to the flow of current. This would mean that the speaker is not working properly.
Option C is incorrect because -200 ohms would indicate that the speaker is working in reverse. This is not possible, as speakers only work in one direction.
Option D is incorrect because unlimited ohms would indicate that there is no limit to the resistance to the flow of current. This is not possible, as all speakers have a finite resistance.
Option E is incorrect because none of the other options are correct.