单选题 .  At the moment, the note(钞票) of the highest value which is generally in use is the 20-pound note. Now, the Bank of England plans to introduce a new, 50-pound note. And the Bank is trying to decide which famous English man or woman to be put on the back of the new note.
    Quite a problem. The Bank usually chooses safe, historical personalities. We already have Sir Isaac Newton, the scientist, the first Duke of Wellington, the famous soldier who led the British army at Waterloo, Florence Nightingale, founder of English Nursing and—of course—Shakespeare. So far, the list of possible choices for the 50-pound note is quite predictable. There's Sir Francis Drake, to represent the achievements of English explorers in the sixteenth century. Then we have Lord Nelson, another sailor and the man who won the battle of Trafalgar in 1805 for England. The Bank will not forget music this time either. If they choose a woman, the feminist movement has two representatives: Boadicea, who fought against the Romans, or Pankhurst, who fought to get the vote for women early in this century.1.  According to the passage, the note of the highest value is ______.