Study the following sentences.
$I.$ The cells of malignant tumours divide erratically.
$II.$ They are malignant tumours of epithelial cells.
$III.$ They are malignant tumours of organs that originate from mesoderm.
$IV.$ These tumours are found in organs such as spleen and lymph nodes.
Which of the above are true for angiosarcoma?

• A
  $I$ and $II$
• B
  $II$ and $IV$
• C
  $I$ and $III$
• D
  $II$ and $IV$