A In British English, the word "colour" is spelled "color," while in American English, the same word is spelled "colour."
B The pronunciation of the post-vocalic “r” (as in "car" and "mother") is more common in British English than in American English.
C Words like "trousers" and "pants" have identical meanings in both British and American English.
D American English preserves more features of Elizabethan English than modern British English.
E There are no grammatical differences between British and American English, only lexical and pronunciation variations.