Which of the following are adjectives represented by the acronym ŪNUS NAUTA?

The choice of Ūnus and NŪLLUS as adjectives represented by the acronym ŪNUS NAUTA is correct because these words specifically fit the criteria of adjectives used in Latin. Ūnus means "one," and NŪLLUS means "none" or "not any." Both are used to convey quantity and describe nouns, fulfilling the role of adjectives.

In Latin, the acronym ŪNUS NAUTA refers to a specific group of adjectives that are important in understanding the grammatical structure. The adjectives in this group are often used to indicate numerical or qualitative characteristics, which is exactly what Ūnus and NŪLLUS do.

Other choices include words that either do not fit the adjective requirement as clearly or do not belong to the specific set defined by the acronym in question. For instance, while Multus (meaning "many") and Magnus (meaning "great") are indeed adjectives, they are not part of the specific ŪNUS NAUTA classification. Tertius (meaning "third") is also an adjective, but it does not belong to the defined set of adjectives represented by the acronym, demonstrating the significance of knowing precise vocabulary when discussing Latin grammar.