The correct answer is D. Being.



1. Understanding the Sentence Structure:
- The sentence needs a verb form that indicates an ongoing action in the past relative to another past event.

2. Verb Forms:
- To being: This is not a standard verb form used in this context.
- Been: This form is used for the perfect aspect but does not fit with the continuous aspect needed here.
- To been: This is incorrect because it combines "to" with the past participle "been" incorrectly.
- Being: This form is used to describe an action that was ongoing at a particular time in the past.

3. Grammar Rule:
- Past Continuous Passive Voice: When describing an ongoing action in the past that was happening at a certain point, the past continuous form is used. In passive constructions, this is "was being" + past participle.

Summary:
- "Being" is the correct choice because it indicates that the renovation was ongoing when the subject got there. The correct sentence is: "The building was being renovated when I got there."