If the euro$/$U$.$S$.$dollar exchange rate is $\backslash (1\mathrm{.}1/\backslash )$ U$.$S$.\backslash (\backslash$$ $\backslash )$ in New York but $\backslash (1\mathrm{.}05/\backslash )$ U$.$S$.\backslash (\backslash$$ $\backslash )$ in London, we should see:

A$.$ people selling euros and buying dollars in New York and then buying euros by selling dollars in London

B$.$ people selling U$.$S$.$ dollars and buying euros in New York and then selling those euros and buying $\backslash (\backslash$$ $\backslash )\text{'}$s in London

C$.$ the price differential between the markets increase as people seek to take advantage of the situation.

D$.$ the dollar should appreciate in New York relative to the euro