Take context from the input text and decide on the accurate relationship between 'ZocDoc' and 'company' from the options provided.
Options: subsidiary, location of formation, product/material produced, legal form

The only two New York City startups more valuable than ZocDoc are Blue Apron, a $2 billion food delivery startup, and WeWork, a $10 billion company that rents out office space, according to Dow Jones VentureWire .
legal form