Which of the following would happen to an individual playing a long game of basketball outdoors on a hot afternoon?

Options

A. The production of thyroxine by the thyroid gland would increase.
B. The osmotic pressure of the blood would decrease.
C. The volume of the urine produced would increase.
D. The secretion of ADH from the pituitary gland would increase.

Answer

To answer the question regarding what would happen to an individual playing a long game of basketball outdoors on a hot afternoon, we can follow these steps:

### Step 1: Understand the Context
- Playing basketball is a physically demanding activity that requires a lot of energy and can lead to sweating, especially in hot weather.

### Step 2: Consider the Effects of Heat
- When playing in hot weather, the body temperature of the individual will rise due to the heat from the environment and the heat generated from physical exertion.

### Step 3: Analyze the Body's Response
- To regulate body temperature, the body will start to sweat. Sweating is the body's natural cooling mechanism.

### Step 4: Identify Possible Outcomes
- As the individual continues to sweat, they may lose a significant amount of water and electrolytes, which can lead to dehydration if not replenished.

### Step 5: Conclusion
- Therefore, the most likely outcome for an individual playing basketball outdoors on a hot afternoon is that they will experience dehydration and possibly heat-related illnesses if they do not hydrate properly.

### Final Answer
- The correct answer is that the individual would likely experience dehydration due to excessive sweating.

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