The line of computing jobs waiting to be run on a computer system might be a （）.The jobs are serviced in the order of their arrival,that is ,the first in is the first out.

A．queue

B．stack

C．array

D．record

An analyst does research about liquidity. Liquidity in financial markets is best described as the ability to purchase or sell an asset:（）

A. at a low transaction cost.

B. quickly at a known price.

C. quickly and easily at a price close to fair market value.