The answer is D. Metaphor
A metaphor a figure of speech in which a word or phrase is applied to an object or action to which it is not literally applicable. Unlike a simile, it doesn’t use the words like or as to compare to things. So when you look at the sentence it says “The goalkeeper was a rock...” We know that the goalkeeper isn’t actually a rock, but the sentence is comparing the goal keeper to a rock without using the words “like or as”
Alliteration is the repetition of the same sound at the beginning of a group of words.
Poets use alliteration to help create mood, rhythm or emphasis. It can also help with memorization. It's important to realize that it's all about sound, not spelling. For example, the letter c can have a hard or soft sound as in cereal and cat. These two words next to each other would not be considered alliteration because they are not the same sound. Examples of alliteration are:
My many monkeys met at the museum.
All the aardvarks already arrived.
I’m sorry but without the text I can’t answer the question I don’t know what info is there so I can’t answer without a risk