Analyze the relationship between 'SolarCity' and 'Lyndon Rive' within the context of the input sentence.
Options: chief executive officer, publisher, business division, member of

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