Refer to the input text as context and select the correct relationship between 'SolarCity' and 'Lyndon Rive' from the available options.
Options: chief executive officer, member of, publisher, business division

SolarCity Corp. SCTY, +6.94% Chief Executive Lyndon Rive said he was "happy" about the merger between Vivint Solar Inc. VSLR, +44.76% and SunEdison Inc. as he expects a Vivint under SunEdison will step up its solar advocacy efforts.
chief executive officer