Topic: Dangling Modifer,

Best Answer Explained in Below-:

The phrase "I don't care how much-" introduces a sentence that requires a natural construction for expressing concern about the price of an object. In this context, the correct answer is "D) the car costs."

This option forms a correct noun clause that fits seamlessly with the introductory phrase. Here’s the breakdown:

1. **Structure of the Sentence:** The phrase "I don't care how much" expects a statement about the cost to follow. The structure of "the car costs" functions as a noun clause that provides the necessary information about the car's price.

2. **Subject-Verb Agreement:** "The car costs" presents a clear subject ("the car") and a verb ("costs") in a declarative form, which is appropriate for this expression. Using "the car costs" accurately indicates a statement rather than a question.

3. **Clarity and Directness:** This option is straightforward and effectively communicates the idea without unnecessary complexity.

The other options, such as "does cost the car," and "does the car cost," are either awkward or grammatically incorrect in this context. Thus, "D) the car costs" is the most grammatically correct and contextually appropriate choice.