Analyze the relationship between 'Goldman Sachs' and 'Lloyd Blankfein' within the context of the input sentence.
Options: owned by, developer, chief executive officer, business division

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."
chief executive officer