What is the output of following code ?

निम्नलिखित कोड का आउटपुट क्या है?

a1={1:"A",2:"B",3:"C"}
b1={4:"D",5:"E"}
b1.update(a1)
print(b1)

{4: 'D', 5: 'E', 1: 'A', 2: 'B', 3: 'C'}

{1: 'A', 2: 'B', 3: 'C', 4: 'D', 5: 'E'}

{4: 'D', 5: 'E'}

None of these

Explanation:

Sure! Here's a concise explanation:

We have two dictionaries:
- a1 = {1: "A", 2: "B", 3: "C"}
- b1 = {4: "D", 5: "E"}
The update() method adds the items from a1 to b1.
After b1.update(a1), b1 will include all key-value pairs from both dictionaries.

So, the final result of b1 will be:

{4: 'D', 5: 'E', 1: 'A', 2: 'B', 3: 'C'}