A pharmaceutical company selling prescription drugs in France for the past 10 years has had moderate sales in a crowded market, as its rivals manufacture and market drugs of similar efficacy and having similar safety precautions, but that have superior market share. This particular pharmaceutical company's greatest challenge is to increase French doctors' prescribing their drugs. What would be the most effective strategy to improve sales performance in the existing market?

A) modifying marketing communication to increase brand familiarity within key physician segments
B) relocating all the existing drug manufacturing facilities to developing countries to reduce operational costs
C) employing hiring plans that aim at acquiring drug designers from rival companies
D) exiting the market and entering a new unexplored geographical location
E) engaging in new contract talks with suppliers about price breaks