Final answer:
The repression of Scotland's distinctive culture by the British is suggested by the prohibition of the Scottish Highlanders from speaking their Gaelic language.
Step-by-step explanation:
The statement that suggests the repression of Scotland's distinctive culture by the British is B. The Scottish Highlanders were forbidden to speak their Gaelic language. This is because throughout history, there have been efforts to suppress and marginalize Gaelic language and culture in Scotland. The English government implemented policies to discourage the use of Gaelic in schools and public institutions, which had an impact on the promotion and preservation of Scotland's unique cultural heritage.