Mr Blacker Has Been Transferred to the Ward Following a Heart

Mr Blacker has been transferred to the ward following a heart attack three days ago. He tells you he is nauseated and feels quite unwell. You are assisting the registered nurse to care for him. The following four questions relate to his care.
-Mr Blacker asks for medication for chest pain which has not been relieved by his Anginine tablets. He is seen by the doctor and is to have 12 mg of subcutaneous morphine. If stock is 15 mg/ml, the volume to be drawn up is

A) 0.8 ml
B) 0.75 ml
C) 0.4 ml
D) 0.3 ml