Initializing a static field vs. returning a value in static property get?

A) In the following code, will the method DataTools.LoadSearchList() only be called once, or every time the property is being accessed?

public static IEnumerable<string> SearchWordList
{
    get
    {
        return DataTools.LoadSearchList();
    }
}

B) Is there any difference to this?

public static IEnumerable<string> SearchWordList = DataTools.LoadSearchList();