Which of the Questions Listed Below Would Be the Easiest

Which of the questions listed below would be the easiest to code?

A) "What are the attributes that a good president must have?"
B) "What is your opinion of the influence of the Hare Krisna group a religious sect) on the minds of its younger members?"
C) "What influence, if any, do you think TV commercials have on children?"
D) "What are the major achievements and failures of the system of American government?"
E) "What type of oven do you have: 1) gas, 2) electric, 3) microwave, 4) other?"