Which factors may increase the likelihood of decompression sickness?

The factors mentioned highlight several risks associated with decompression sickness (DCS). Heavy exercise immediately before, during, or after a dive raises metabolic rates and can increase nitrogen uptake in the body, making it more likely for bubbles to form during ascent. Similarly, alcohol consumption can dehydrate the body and impair judgment, which may lead to improper ascent practices. Exposure to cold temperatures can constrict blood vessels, potentially affecting bubble formation and circulation. Lastly, being overweight may lead to increased tissue nitrogen levels and longer residual nitrogen times, both contributing to a higher risk of DCS. Each of these elements independently and collectively amplifies the risk of developing decompression sickness, which is why option B accurately encompasses multiple contributing factors that divers need to be cautious of.