C# ow the disposing of an object that need to call the Dispose method works

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C#

Hello,

My question is how the disposing of an object that need to call the Dispose method works. By the way, English is not my native language, so sorry if the there are gramatical errors

I want to get a list of the service that are installed in my system, for that I use WMI. First I get the instances of the Win32_Service using the GetInstance method that are in the ManagementClass that returns a ManagementObjectCollection. But since an object of the ManagementClass needs to call the Dispose method when we don't need it anymore and the same for the ManagementObjectCollection, so here in the code bellow,

var services = new ManagementClass("Win32_Service").GetInstances();

foreach (var service in services)
{
    //Some code here            
    service.Dispose();
}
wmiServiceClass.Dispose();
services.Dispose();

can I assume that the CLR will dispose of the instance of the ManagementClass that it creates for getting the instance or it's better doing it like this

var wmiServiceClass = new ManagementClass("Win32_Service");
var services = wmiServiceClass.GetInstances();

foreach (var service in services)
{
    //Some code here            
    service.Dispose();
}
wmiServiceClass.Dispose();
services.Dispose();

Thanks in advance.