Topic: Voice,

Best Answer Explained in Below-:

The correct phrase is actually **B) I was charmed by her beauty.** Let's clarify the reasoning.

In English grammar, the verb "charm" typically requires the preposition "by" to indicate the agent or the cause of the charm. Here’s a breakdown of the phrases:

- **A) I was charmed at her beauty.** – The preposition "at" is incorrect in this context. "At" typically indicates a location or a point in time, rather than a reason or cause.

- **B) I was charmed by her beauty.** – This is the correct phrase. It clearly states that her beauty is the cause of the charm, using "by" appropriately to indicate the agent.

- **C) I was charmed for her beauty.** – The preposition "for" is incorrect because it suggests a favor or purpose but does not correctly convey the relationship between the speaker and the beauty being admired.

- **D) I was charmed to her beauty.** – Similarly, "to" is inappropriate here as it implies direction or movement rather than the causative relationship needed.

Thus, **B) I was charmed by her beauty.** correctly reflects the intended meaning that the beauty itself is what induced the feeling of being charmed.