I believe the answer is C
Answer:
The proximal attachments are the pubic crest and the pubic symphysis. It attaches distally at the costal cartilages of ribs 5-7 and the xiphoid process of the sternum.
A carcinogen is defined as an agent (e.g. chemical) that can increase the risk of cancer.
Exposure to the carcinogens present in tobacco smoke increases the risk of developing cancer.
It causes lung cancer.
Hope this helps!