Step 1: Understanding the Question.
This question asks about the condition related to overeating, particularly in terms of food intake.
Step 2: Analyzing the Options. (A) When food intake is less: This is not associated with overeating. (B) When food intake is higher than required: Correct — Overeating occurs when a person consumes more food than their body needs. (C) Excessive calorie intake: This is related to overeating but is not the most precise answer. (D) None of the above: This is not correct.
Step 3: Conclusion.
The correct answer is (B) When food intake is higher than required, which is the primary cause of overeating.