Final answer:
Cancer cells arise from accumulated mutations including those affecting oncogenes and tumor-suppressor genes which regulate cell division; not all cancers come from spontaneous mutations. Benign tumors can indeed become metastatic cancer cells. option B, C and D are correct.
Step-by-step explanation:
Answering the question regarding the truths about cancer cells, not all instances are true. Here is a clarification of each statement:
- Cancer cells result from a process involving multiple steps, not just one process like meiosis (menows). The typing error 'menows' seems like a misinterpretation of 'meiosis,' which is incorrect in this context.
- Oncogenes and tumor-suppressor genes are crucial in the regulation of cell division and growth, which can become dysregulated in cancer cells.
- While spontaneous mutations can lead to cancer, most cancers result from a series of accumulated mutations rather than spontaneous ones alone.
- Benign cancer cells can, indeed, transition into metastatic cancer cells through a process known as malignancy progression and metastasis.