Read the sentence and answer the following question: i have many beliefs about how the traffic light system could perform better. which revision would make this sentence more precise?

i believe small changes to the timing would improve this traffic light system.
i have some changes that i believe would make the traffic light system work better.
if the traffic light system can be addressed, i have some ideas that would make it better.
the traffic light system would perform better if my beliefs were heard.

A: I believe small changes to the timing would improve this traffic light system.

Explanation:

 The revision in the option A makes the sentence more precise because it is objective and clear. Someone saying that he or she has 'many beliefs' is only a vague statement if they want to call attention of the responsible for the traffic light system. Therefore, a more specific and objective suggestion can obtain better response.

from the excerpt from the "the dark game" the reader can infer that folke cronholm was spying for the allied nations.

these have to be in your own words