Federal Reserve Chairwoman Janet Yellen last week referred to concerns about the "deftness" of China's response to downside risks, while Goldman Sachs Chief Executive Officer Lloyd Blankfein called the handling of its stock market collapse "ham-handed."
What is the relationship between 'Goldman Sachs' and 'Lloyd Blankfein' in the context of the input sentence.
Options: business division, owned by, developer, chief executive officer