Which disease is caused by the activation of oncogenes?

Which of the following are side effects of anticancer drugs?
$(i)$ Paralysis $(ii)$ Hair loss $(iii)$ Decrease in white blood cell count $(iv)$ Anemia

Select the correct statements about cancer $:-$
$(A)$ Cancer cells show the property of contact inhibition.
$(B)$ Benign tumors normally remain confined to their original location and do not spread to other parts of the body.
$(C)$ Metastasis is the most feared property of benign tumours.
$(D)$ $X$-rays and gamma rays can lead to neoplastic transformation.
Choose the correct answer from the options given below :

The process of metastasis in cancer is associated with which of the following?

The recently discovered vitamin having anti-cancer properties is:

Which one of the following statements is correct?