The answer is the third one .
Because
green insinuates a feeling of moving forward and gain confidence and comfort by the color
Hey I tried but could not find your answer, but maybe you could try to calculate the average of bpts of the different elements in the compound to find the boiling point. And when you know the bpt, you can find out whether it is a liquid or gas. But after searching a lot, I found it was a solid. Good luck!
Answer:i believe you are to decompose the formula (i think)
