Answer:
B. Preposition
Explanation:
A preposition gives hints on the position occupied by some words in sentences. For instance, the time when something occurs can be hinted using a preposition that defines time. Therefore the prepositions must be used in different sentences to makes the devise's principles easy to classify. When handling any form of writing, all types of prepositions must be implemented correctly by using the standard rules of preposition usage. Therefore it is essential to make sure all preposition is used according to time and value.