Economics Help

Hi I have missed a few lessons in economics due to health but still have a question to be handed in tomorrow, he still expects me to hand it in, but I am unsure on a question and need help from somebody.

The question is:
Using the data and your economic knowledge, evaluate the contribution that macroeconomic stability in the UK may make in facing the challenges posted by the economies such as China.

I am unsure on what macroeconomic stability actually is, and im quite unsure on what challenges it means other than "exports/foriegn investment".