What combination best represents British heritage in maritime symbols?

The combination that best represents British heritage in maritime symbols is the Cross of St. George and the gold lion. The Cross of St. George is notably recognized as the national flag of England, which has strong maritime connotations, especially in naval contexts. It signifies England's historical role in maritime endeavors and exploration.

The gold lion, often associated with the royal coat of arms of England, symbolizes strength, courage, and nobility. These symbols are deeply embedded in British history and identity, particularly relating to its naval heritage. Together, they represent the proud maritime tradition of England, reflecting the significance of naval power and the glory associated with its history.

Other choices contain symbols that may have various meanings but do not embody the same level of direct connection to British maritime heritage as the Cross of St. George and the gold lion.