Underlining the stakes involved, the party's chief whip Volker Kauder this month vowed to impose sanctions on any dissidents in his ranks -- a threat that may have backfired by antagonising backbenchers.
Take context from the input text and decide on the accurate relationship between 'Volker Kauder' and 'chief whip' from the options provided.
Options: stock exchange, parent organization, position held, creator