Analyze the relationship between 'Esurance' and 'Allstate' within the context of the input sentence.
Options: parent organization, developer, position held, 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