Write SQL query to solve given problem: Which country do most players of team Plymouth Whalers come from?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T.nation FROM ( SELECT T1.nation, COUNT(T1.ELITEID) FROM PlayerInfo AS T1 INNER JOIN SeasonStatus AS T2 ON T1.ELITEID = T2.ELITEID WHERE T2.TEAM = 'Plymouth Whalers' GROUP BY T1.nation ORDER BY COUNT(T1.ELITEID) DESC LIMIT 1 ) AS T