Task: Question Answering
Input (English): Question: In a class of 5 students, average weight of the 4 lightest students is 40 kgs, Average weight of the 4 heaviest students is 45 kgs. What is the difference between the the maximum and minimum possible average weight overall?

 Option A: 2.8 kgs

 Option B: 3.2 kgs

 Option C: 3 kgs

 Option D: 4 kilograms

 Option E: 2 kgs
Output (English): Option D