LOOK at the meaning of the first two WORDS given in the sentence. Universalism: The belief that all humankind will eventually be saved. Particularism: Exclusive attachment to one's own group, party, or nation. Here we find that these two words are antonyms as they have opposite meanings. THEREFORE the next part also follows with antonyms. Hence the correct answer is the word opposite in meaning to Diffuseness.Let's look at the meaning of the given word and the marked option. Diffuseness: Widely spread or scattered. Specificity: The quality of being unique to one subject.Here we find that both the words have opposite meanings and therefore Option 1 Specificity is the correct answer. Let's look at the meaning of the other options. Neutrality: The state of not supporting or helping either SIDE. Generality: A statement or principle having general rather than specific validity. Adaptation: The action or process of adapting or being ADAPTED.