Which of the following functions will return the first three characters of a string named 's'?

1. s[3:]
2. s[:3]
3. s[-3:]
4. s[:-3]

Observe the given code and select the appropriate output.

Tuple given: tup1 = (10, 20, 30, 40, 50, 60, 70, 80, 90)

What will be the output of: print(tup1[3:7:2])

1. (40, 50, 60, 70, 80)
2. (40, 50, 60, 70)
3. (40, 60)
4. Error

When a list is contained in another list as a member-element, it is called …………… .

1. Nested tuple
2. Nested list
3. Array
4. List

The …………… method removes the last entered element from the dictionary.

1. pop()
2. remove()
3. popitem()
4. del