Take context from the input text and decide on the accurate relationship between 'Esurance' and 'Allstate' from the options provided.
Options: position held, developer, parent organization, owner of

The company, led by CEO Ray Barrette, also holds a stake in life insurer Symetra Financial Corp., and in 2011 sold auto insurer Esurance and Answer Financial to Allstate Corp. for about $1 billion.
parent organization