The correct answer is B. Abstract
Step-by-step explanation:
Abstract nouns such as the nouns love, courage, or hope represent ideas that are not tangible; this is the opposite of a concrete noun, which includes words such as table, mountain, or park because these can be perceived through the senses. In this context, the word "courage" can be classified as an abstract noun. Also, this is not a proper noun because it does not refer to a specific person such as the noun Paul, and it is not a compound noun because it does not include two or more words.