Final answer:
Primary tumors from breast carcinoma, lung carcinoma, and colon carcinoma can metastasize to the vagina. These cancer cells travel through the bloodstream and can form new tumors at distant sites.
Step-by-step explanation:
The types of primary tumors that can metastasize to the vagina include breast carcinoma, lung carcinoma, and colon carcinoma. Cancer cells can spread through the bloodstream and form new cancers called metastases at distant sites. Breast cancer, particularly, is known for its ability to metastasize to various parts of the body, including the bone, brain, and liver. Considering the options provided, lung and breast cancers are notably mentioned for their potential to metastasize to distant organs.