Final answer:
Adenocarcinoma is the most common type of lung cancer found in non-smokers and is a form of non-small cell lung cancer.
Step-by-step explanation:
The type of lung malignancy most likely to develop in a non-smoker is adenocarcinoma. This is often found in the outer areas of the lung and is the most common type of lung cancer in non-smokers, particularly in women. It is one of several types of non-small cell lung cancers (NSCLC), and while smoking can increase the risk, it has a higher frequency among non-smokers compared to other lung cancers such as small cell lung cancer (SCLC), squamous cell carcinoma, and large cell carcinoma.
Lung cancer is a serious disease with a high mortality rate, largely due to its typically late diagnosis and the invasive nature of the disease. Smoking remains the most significant risk factor for lung cancer, but non-smokers can also develop the disease, and adenocarcinoma is the form they are more likely to encounter. Treatment options include surgery, radiation therapy, and chemotherapy, although prognosis is often poor due to late detection.