Praise, approval, affection, and money are considered reinforcers. a. unconditional b. negative c. secondary d. primary

c. secondary

Explanation:

Importantly, reinforcement, contrary to common sense, may not be a simple reward. For B. F. Skinner, reinforcement can be any event that increases the frequency of a preceding reaction. A reinforcement can be a tangible reward. It can be a compliment or an attention. Or it can be an activity, such as being able to use the car after the dishes have been washed, or taking time off after an hour of study.

Accordingly, it has been defined that a secondary reinforcement is reinforcement obtained by meeting secondary or social (learned) needs such as sympathy, honors, prestige, cuddles, money, material goods, compliments, approval, and affection.