The energy value of fats and oils is _______ more than carbohydrates.

Fats and oils contain about 9 kcal/g, whereas carbohydrates, as well as proteins, contain about 4 kcal/g. Hence, fats and oils contain 2.25 times as many calories as carbohydrates and proteins, as 9/4 = 2.25. Thus, the correct answer is (B) 2.25 times.