Topic: Sentence (বাক্য),

Best Answer Explained in Below-:

The correct preposition to fill in the blank in the sentence "I’m _____ La Guardia Community College." is "at." When referring to educational institutions or specific locations, "at" is commonly used to indicate presence or affiliation. For example, we often say, "I am at the university," suggesting that the speaker is located within or associated with that particular institution.

Using "in" would imply being inside a physical space or enclosed area, which doesn’t accurately convey the idea of affiliation with a college. "On" typically refers to being on a surface or about a specific topic, neither of which pertains to the context of educational association. Lastly, "of" denotes possession or association but does not indicate location or attendance.

Therefore, "I’m at La Guardia Community College" accurately captures the idea that the speaker is either physically present at the college or affiliated with it, making "at" the most appropriate choice in this context.