Which of the following best represents moderate consumption?

The term that best represents moderate consumption is "abstemious." This word describes a lifestyle characterized by moderation and restraint, especially in relation to eating and drinking. An abstemious individual tends to consume food and beverages sparingly, avoiding excess and indulgence, which aligns directly with the concept of moderation.

In contrast, the other options do not convey the same idea. "Abhor" means to regard with disgust or hatred, which is unrelated to the concept of consumption. "Acumen" refers to the ability to make good judgments and quick decisions, particularly in a specific domain; it does not pertain to consumption at all. "Amalgamate" means to combine or unite, often in a business or organizational context, and lacks any reference to moderation in consumption. Therefore, "abstemious" is the correct choice for representing moderate consumption.