Amendments to the Planning and Zoning Code, either text or map, may be initiated in one of the following ways:
(a) By the filing of an application to the Planning Commission by at least one owner or lessee of property or developer with an option on such property within the area proposed to be changed or affected by said amendment.
(b) By the adoption of a motion by the Planning Commission.
(c) By the passage of a resolution by City Council.