Answer: You should list the answer choices, however if you cannot, I will list all of the advantages of the lactic acid system:
Provides more sustained high-intensity energy for between 10 and 180 seconds.
Can work both anaerobically (without oxygen) and aerobically (with oxygen).
There is a huge amount of glycogen stored in the muscles and liver which can be made available for energy.
Fewer reactions than the aerobic energy system are needed to produce energy so it is faster (but not as fast as the PC system).
It is more efficient than the ATP-PC system as the lactic acid system resynthesises two molecules of ATP as opposed to just one that the ATP-PC manages.
