Select the correct option to get the values of marks key:

Student={ "name" : "Emma", "class" :11, "sec": "a", "marks" :76}

1. Student.get(3)
2. Student.get("marks")
3. Student["marks"]
4. Both 2 and 3

Consider the given code:

D1={1: 'India', 2: 'Russia', 3: 'World'}
D2={'School' : 'EOIS' , 'Place ' : 'Moscow'}
print(D1.update (D2) )

What will be the output of the above code:

1. None
2. {1: 'India' , 2: 'Russia' , 3: 'World' , 'School' : 'EOIS' , 'Place' : 'Moscow'}
3. Error
4. None of these

Assertion (A): Dictionaries are enclosed within curly braces { }.

Reasoning (R): The key-value pairs are separated by commas (,).

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.

Assertion (A): The popitem() method can be used to delete elements from a dictionary.

Reasoning (R): The popitem() method deletes the last inserted key-value pair and returns the value of deleted element.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.