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.
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