Final answer:
Cadillac Style means adding a luxury car to your order.
Step-by-step explanation:
Cadillac Style is a phrase often used in reference to the 1950s era that symbolized luxury, elegance, and sophistication. It originated from the popularity of Cadillac automobiles during that time, which were known for their stylish designs and high-end features.
So, the answer to your question is a) Adding a luxury car to your order. Adding a Cadillac to your order means choosing a high-quality, luxurious option.