In the context of the input sentence, determine the relationship between 'Flipkart' and 'eBay'.
Options: founded by, subsidiary, developer, currency

In a bid to encourage more sellers join their online channels, e-commerce majors including Flipkart , Snapdeal , Amazon and eBay are tying up with non-banking lenders for extending loans to those keen to sell products through these online marketplaces.
subsidiary