單項(xiàng)選擇題

you have recently written the code shown below:
Hashtable emailAddresses = new Hashtable ();
emailAddresses.Add ("Mia", "mia@ Certkiller .com");
emailAddresses.Add ("Andy", "andy@ Certkiller .com");
emailAddresses.Add ("Kara", "kara@ Certkiller .com");
You need to ensure that these e-mail addresses are stored in the Email.dat file so that you can load them again
when the user restarts the application.
What should you do?()

A.
B.
C.
D.

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