The correct option is: (a) 3 5 4 2 1
Explanation:
Benign tumours are those which do not spread from the site of formation and is not cancerous. They can be operated and treated by removal. Malignant tumours are dangerously cancerous as they spread from the place of formation to other tissues. Neoplasm is a malignant tumour. Cancer of epithelial tissues is called carcinomas. Sarcoma is cancer developed in bone and cartilage tissues. Lymphomas are the cancers of blood-forming haematopoietic cells.
