BlackRock generated a record $17 billion in sustainable iShares ETFs inflows year-to-date, outpacing the $12 billion from all of 2019 as we innovate and expand innovate and expand innovate and expand access to sustainable investment solutions.
In the context of the input sentence, determine the relationship between 'iShares' and 'BlackRock'.
Options: original broadcaster, chief executive officer, operator, manufacturer