I think the answer would be A. A colorful pie chart.
Facilitates liquidity: The most important role of the stock exchange is in ensuring a ready platform for the sale and purchase of securities. This gives investors the confidence that the existing investments can be converted into cash, or in other words, stock exchange offers liquidity in terms of investment.
Thomas might have been using both meanings in the poem so that he can show how kind he is.
by thinking of his ghost while he cry's himself to sleep.
