Take context from the input text and decide on the accurate relationship between 'iShares' and 'BlackRock' from the options provided.
Options: parent organization, brand, product/material produced, operator

This month, BlackRock BlackRock added 11 new products to its currency-hedged iShares lineup bringing it’s total to 16; WisdomTree now offers 16 products as well and Deutsche Bank Deutsche Bank has 14.
operator