The operator used to join two or more strings is …………… .

1. +
2. -
3. *
4. None of these

The method used to convert all characters of a string in upper case is …………… .

1. toupper()
2. upper()
3. capital()
4. case()

The method used to check that string contains all lower case letter is …………… .

1. lower()
2. small()
3. issmall()
4. islower()

What would be the output of following code …………… .

str1 = "Hello India"
s1 = str1[1:3]
print(s1) 

1. He
2. el
3. Hlo
4. None of these