Which one of the following sentence contains an abstract noun? A) The vase was quite expensive B) Logic is easily understood. C) His skill was legendary. D) She handed him the dishtowel

B) Logic is easily understood.

Logic is the abstract noun in the given sentences. By which, logic is the philosophical understanding of valid reasoning. It is more of a concept and a perceptual system of a model on how human can use this body to perform tasks but it is an invisible force or a psychological construct - an idea that manifests and exists but cannot be perceived directly. While skill on the other hand can be observed and quantified with the use of tools such as tests, and etc.