Is it a. you need to refuse the size of the picture files for email purposes or b. it's faster to send one file insted of sending four files in the one email

Apython programming question: assume s is a string of lower case characters. write a program that prints the number of times the string 'bob' occurs in s. for example, if s = 'azcbobobegghakl', then your program should print number of times bob occurs is: 2