Consider the code given below:

class MyGreeting {
 String value = "";
 void morningGreeting() => greeting="Good morning"
}

test('Greeting should be Good morning, () {
 /* Your Code goes here */
});

Which of the following code snippets should be placed inside test(), for checking whether on calling morningGreeting(), greeting is set to "Good morning"?

final greeting = MyGreeting();
greeting.morningGreeting();
expect(greeting.value, "Good morning");

MyGreeting.morningGreeting();
expect(greeting.value, "Good morning");

final greeting = MyGreeting();
greeting.morningGreeting();
expect(greeting.value == "Good morning");

final greeting = MyGreeting();
greeting.morningGreeting();
if(greeting.value == "Good morning")
	return true
else
	 return false

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