I have these questions All are supposed to be written in Python

2. Assume that the variable data refers to the string myprogram.exe. Write the expressions that perform the following tasks:

a Extract the substring gram from data.

b Truncate the extension .exe from data.

c Extract the character at the middle position from data.

3 Assume that the variable myString refers to a string. Write a code seg- ment that uses a loop to print the characters of the string in reverse order.

4 Assume that the variable myString refers to a string, and the variable reversedString refers to an empty string. Write a loop that adds the characters from myString to reversedString in reverse order