In the metaphor of language as a layer cake (presented in your study unit), which of the following words could be considered to be a frosting word? a. occasionally b. honestly c. frequently d. prescient

The correct option is option D ("Prescient").

Prescient is an adjective that refers to the ability of perceiving and understanding events before they even unfold. This is certainly not a common word that you hear every day, it's something extra. So if we're talking about language using a cake as a metaphor, a rare word like "prescient" would liken to an extra ingredient that you add on top, such as frosting on a cake.

Hope this helps!

i think that the answer is a