What tells us the position or place of something in relation to something else?

The correct choice, which is a preposition, refers to words that indicate the position or location of one thing in relation to another. Prepositions help convey relationships regarding direction, location, time, and manner, typically appearing before nouns or pronouns. For example, in the phrases “on the table” or “under the bridge,” the prepositions “on” and “under” establish the relationship between the objects involved and their locations.

Other options do not serve this specific purpose. An adverb modifies verbs, adjectives, or other adverbs, often indicating how, when, where, or to what extent an action is performed but does not specifically convey positional relationships. A collective noun refers to a group of individuals or things considered as one unit, such as "team" or "flock," and does not denote a relationship between two distinct elements. A conjunction connects words, phrases, or clauses, and while it helps in forming complex sentences, it does not indicate spatial or positional relationships.