[QA] Sunbathing is still a popular activity. People do it even though they know it can cause cancer.

Question:

Sunbathing is still a popular activity. People do it even though they know it can cause cancer.

• A.
  Because sunbathing is still a popular activity, it can cause cancer.
• B.
  Despite the fact that sunbathing can cause cancer, it is still a popular activity.
• C.
  Sunbathing is still a popular activity as long as it can cause cancer.
• D.
  Unless it can cause cancer, sunbathing is still a popular activity.