The correct answer is B. Nuances in meaning
Step-by-step explanation:
A thesaurus is a type of source that lists words and the synonyms or terms related to it. Because of this, thesauruses are commonly used in speeches and texts to provide variety in vocabulary instead of repeating over and over the same terms. However, despite the words in a thesaurus might have exactly the same meaning in most cases they just have similar meanings which imply there are slight differences in the meaning of words or nuances in meaning. For example, in a thesaurus you might find the word "small" along with the words microscope or minuscule and although all of them refer to little or of limited size in the case of microscope and minuscule these are related with tiny or with really small objects. Therefore, synonyms found in a thesaurus most likely have nuances in meaning.