9. Be able to recognize a statement that perform conversion (chapter 3) If s is a variable with value 'goodbye', What would be the Boolean expression to determine whether the first and last characters of s are the same? 2pts a. s[0]=s[1] b. s[0]=s[1] c. s[0:]==s[1:] d. s==s If s is a variable with value 'goodbye', What would be the Boolean expression to determine whether the first two characters of s are ' g ' and ' a '? 2pts a. s== 'ga' b. 'ga' in s c. s[0:2]== 'ga' d. None of these What is the value of y after the function call? 2pts