Refer to the input text as context and select the correct relationship between 'Goldman Sachs' and 'Lloyd Blankfein' from the available options.
Options: developer, chief executive officer, business division, owned by

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