A company's database system administrators come to the office in the morning. The first thing they do is to look at the computer screen to see if there are any deadlocks in the error log from the previous night, then decide what to do next. Which strategies is being used here for dealing with deadlocks?

Question $10$ options:

Detection and recovery. Let deadlocks occur, detect them, and take action

Ignore the problem, maybe it will go away

Dynamic avoidance by careful resource allocation

Prevention, by structurally negating one of the four required conditions