If the foreign exchange market is $\_\_\_\_$ efficient, then historical exchange rate information is not useful for forecasting exchange rate movements $($Pick the best choice$).$

Question $10$ options:

$1)$

semistrong$-$form

$2)$

weak$-$form

$3)$

semiweak$-$form

$4)$

weak$-$form AND semistrong$-$form