Final answer:
The claim that not expressing emotions increases the risk of cancer is false. Factors leading to cancer are multifaceted, and no direct causal link between emotional suppression and cancer has been definitively established. So the correct answer is option (B).
Step-by-step explanation:
The statement that a person who rarely expresses or admits to feeling strong emotions is more likely to develop cancer than someone who often vents his emotions is false. There is no concrete scientific evidence linking the suppression of emotions directly to the increased risk of developing cancer. However, chronic stress and negative emotional states like neuroticism can contribute to a variety of health issues, and it is generally good for one's mental health to use tools of metacognition to reflect on emotions and attempt to manage them.
It is important to note that while expressing emotions is considered healthy, the direct correlation to cancer development is not clearly established. Factors that contribute to cancer are complex and include genetics, environment, lifestyle, and more. Therefore, the statement as phrased oversimplifies the relationship between emotional expression and cancer risk.