Highlight the ROLE (ELABORATE IN 7 POINTS ) of advertising agency for success of advertisement ? What are the CHARACTERISTICS (GIVE AT LEAST 8 CHARACTERISTICS ) of advertising agency and FUNCTIONS (ELABORATE FUNCTIONS IN DETAIL) of advertising agency?

Highlight the ROLE (ELABORATE IN 7 POINTS ) of advertising agency for
success of advertisement ? What are the CHARACTERISTICS (GIVE AT LEAST
8 CHARACTERISTICS ) of advertising agency and FUNCTIONS (ELABORATE
FUNCTIONS IN DETAIL) of advertising agency?