Complex sentence: A common stand-by gift choice due to the variety of contained chocolates, they are most frequently advertised with the classic slogan of "Say thank you with Cadbury Roses" in the UK and Australia, and "Thank you very much" on television advertisements.
Split into simpler sentences: A common stand-by gift choice due to the variety of contained chocolates. They are most frequently advertised with the classic slogan of "Say thank you with Cadbury Roses" in the UK and Australia, and "Thank you very much" on television advertisements.