$6-$ In the context of innovation, what characterizes a "push" source of innovation?a$.$ It is driven by consumer demands and market needs, guiding the development process based on exteral influences.b$.$ It originates from internal research and development efforts within the organization, driven by the desire to create new and innovative solutions.c$.$ It relies on external collaborations and partnerships to gather insights and ideas, shaping the innovation process through external input.d$.$ It responds to emerging trends in the competitive landscape, adjusting the innovation strategy based on the actions and advancements of competitors.