One of the statements below contains a word used incorrectly. Choose the option which has the incorrect or inappropriate usage of the word.

The word 'luxurious' refers to something lavish and elegant, whereas the word 'luxuriant' refers to something that is full of growth and is lush. Options A and D both correctly use the word 'luxurious'  by referring respectively to the 'lives of city princes' and 'suites of the cruise ship'. Options B and C both use the word 'luxuriant', 'tresses' refers to hair, and thus the use of the word 'luxuriant' is suitable. However, in option B, 'trimmings of gold, silk, and velvet' implies that something is luxurious, and not luxuriant. Option B has the incorrect usage of the term 'luxuriant' and is, therefore, the correct answer.