Your response to the prompt should be truthful. You chose 3 strategies that you think will improve your concentration. Explain why you think each strategy might work.
If I'm honest, strategies 1 and 3 are very specific types of implementing strategy number 2. You might want to rethink the second option. Turning off the TV and finding a quiet place to work are both ways to minimize distractions.
All three items also point to the idea that trying to multitask on something like homework while listening to music is counterproductive. The evidence supports this idea and shows that people can only effectively focus on one thing at a time. Minimizing distractions will help you maximize your concentration efforts.
The second half of the prompt asks you to implement your strategies and report on the results. You are essentially performing a scientific study on yourself. The independent variable that you are attempting to control is distractions. The dependent variable is your concentration level, memory retention, grades, etc. The fact that the dependent variable is more vague points out the need for a specific way to measure the success or failure of limiting distractions.
Additionally, in order to give yourself more reliable data, you should perform this study over as long of a period of time as possible. This will help minimize error creeping into the study. The other thing a longer study will do is give you more evidence to use in order to find trends that may exist between distraction amounts/types/etc. and concentration levels.