In the event that the unincorporated area of Santa Clara County, known as “Rancho Rinconada” (as more specifically described in the full ballot measure), is annexed to the City of Cupertino, shall the city’s existing utility users excise tax, imposed on electric, gas, and telephone users throughout the city at a rate of 2.4% of the monthly bills for said utility services (subject to an exemption for senior citizens) be extended to this area?