When in 2020 do you think
their service fees (revenue)
Will increase? Why?

You invest your time, energy, and money to make profit. The primary driver of profitability is revenue. The more you grow revenue the more likely you are to grow profits. If you achieve higher levels of revenue and manage costs so they rise at a lower rate, then you maximize profits.

Explanation:

even though you have attached neither the chart nor the generalizations, i have located them online. the right answer is d, since they are asking you about a generalization. you can only infer from the chart that between 2008 and 2009 the number of employed workers decreased significantly (from over 115 millions to 107 millions approximately), which signals some type of economic crisis.  

answerdemocracy;