【单选题】
You work as an application developer at Certkiller .com. Certkiller .com has asked you to create a multi-threaded application， which executes a critical database <br /> backup operation on an hourly basis. You define this operation with the following code： <br /> public void BackupDB （） { <br /> //Implementation code } <br /> You then create a Thread object for the purpose of invoking this method. <br /> You need to ensure that the thread is scheduled for execution before any other thread at runtime.What should you do？（）<br /> <img src="https://nimg.ppkao.com/2018-07/chenxin/2018072616114434784.jpg?sig
A、A
B、B
C、C
D、D
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