The exhibition features 250 ............. of art. a) pictures b) parts c) pieces d) works

To determine the best option to fill in the blank in the sentence "The exhibition features 250 ............. of art," we can analyze the meaning and usage of each of the provided options:

1. pictures: This typically refers to images or visual representations, often framed and displayed. While art can include pictures, it is a more limited term.

2. parts: This term generally refers to portions of a whole. It is not commonly used to describe works of art, making it an unsuitable choice in this context.

3. pieces: This term can refer to individual items or works, especially in art. It is commonly used to denote various forms of art, making it a strong candidate.

4. works: This is a broader term that encompasses all forms of artistic creation, including paintings, sculptures, and installations. It is also commonly used in the art world.

Conclusion

Since both "pieces" and "works" can fit in the context of art, either could be correct. However, "works" is often the preferred term in formal settings when discussing art collectively.

Therefore, the best choice would be: d) works

Final Answer: The exhibition features 250 works of art.