Assertion (A): Items in dictionaries are unordered.

Reasoning (R): You may not get back the data in the same order in which you had entered the data initially in the dictionary.

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): Consider the code given below:

d={1: 'Amit', 2: 'Sumit', 5:'Kavita'}
d.pop(1) 
print(d) 

The output will be:

Amit #item is returned after deletion
{2: 'Sumit', 5: 'Kavita'}

Reasoning (R): pop() method not only deletes the item from the dictionary but also returns the deleted value.

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.

What are the differences between strings and dictionary?

Find errors and rewrite the same after correcting the following code:

d1 = {1:10, 2.5:20, 3:30, 4:40, 5:50, 6:60, 7:70}