Read the following context and choose the best option to answer the question.
Context: If someone points out something substantive I can fix in the analysis , I will try to clean it up . First , read this . This page gives a good discussion of a liquidity crisis in corporate finance . A macroeconomic " high finance " liquidity crisis is essentially the same thing , only happening with large banks . As in everything in high finance , high - finance liquidity crises are more complex . One key reason high - finance liquidity crises are much more complex and potentially disastrous than regular corporate liquidity crises is the meshed nature of the problem .
Question: What is the speaker trying to do ?
Options: 
- None of the above choices .
 - They are teaching a course about macroeconomics .
 - They are teaching their coworkers about liquidation .
 - They are trying to give a presentation at work .


They are teaching a course about macroeconomics .