Task list does not allow "Account" field to be shown

Task list does not allow "Account" field to be shown

I am unable to edit the activates list to show the "Account" for each of the tasks.  This is problematic, as it requires us to remember the individuals account relationship as we are review the open activities list or forces us to click on each task to find out what account the task is related to.  I tried to edit the view, however account does not seem to be one of the selectable fields.  Suggestions?