Which of these sentences is written correctly? 1) James has always been a nervous person; he worries whether or not he has a reason to. 2) James has always been a nervous person; he worried whether or not he has a reason to. 3) James has always been a nervous person; he worries whether or not he has a reason to. 4) James has always been a nervous person; he worries whether or not he has a reason to.