The correct answer is B) Drinking excessive water lost during profuse sweating without replacing the salt lost. This strategy is most likely to result in more severe pain associated with heat cramps. Sweating leads to the loss of both water and salt (electrolytes) from the body. Drinking excessive water without replenishing the lost salt can dilute the remaining electrolytes in the body, leading to an imbalance that can cause painful muscle cramps, a condition known as heat cramps. The other options are incorrect because: A) Drinking insufficient water and salt can also lead to heat exhaustion, but it does not specifically result in more severe pain from heat cramps. C) Taking in excessive salt without replacing water can cause other issues like nausea and vomiting. D) Drinking excessive water and salt is the recommended strategy to prevent heat exhaustion and heat cramps.