alguien me pude explicar esto pliss "Existen niveles de participación pero todos deben ser reales, efectivos, y traducirse en cambios surgidos de esa dinámica."

Although many musicians participated in the bebop revolution, and history has undoubtedly forgotten many who were in the trenches of the harlem jam sessions, it is clear that the most important and influential architects of bebop were and

Silverpoint is a. a technique using the blackish residue of impure carbon obtained by removing water from animal and vegetation substances. b. a technique involving the use of a metal point, and a thin silver wire, popular in the 14th and 15th centuries. c. a printmaking technique born from crayon manner that imitates the appearance of chalk lines. d. a technique used since the 16th century involving a stick filled with either colored or black graphite, a heated mixture of carbon and clay

From the television industry's point of view, which of the following would be the most desirable viewer?