Final answer:
Prepositions don't have Tenses, but prepositions that end in a vowel may drop offWhen the following word begins with a vowel. This is called , elision
Prepositions do not have tenses, and the omission process for easier pronunciation when vowels meet is called elision, making option a) Tenses, elision the correct answer.
Step-by-step explanation:
Prepositions do not have tenses, but prepositions that end in a vowel may drop off when the following word begins with a vowel. This process is called elision.
Therefore, the correct answer to the question is a) Tenses, elision. The word "elision" describes the omission of a vowel, consonant, or syllable in speech. It's a common feature in many languages, including English, to avoid awkward vowel combinations and ease pronunciation.