Which of the following alloys contain (s) Cu and Zn?

Options

A. Bronze
B. Brass
C. Gun metal
D. Type metal

Explanation

To determine which of the given alloys contain both copper (Cu) and zinc (Zn), we can analyze the provided options based on the characteristics of common alloys.

### Step-by-Step Solution:

1. **Understand the Alloys**: Alloys are mixtures of two or more metals. In this case, we are looking for alloys that specifically contain copper (Cu) and zinc (Zn).

2. **Identify Common Alloys**:
- **Bronze**: An alloy primarily made of copper and tin. It does not contain zinc.
- **Brass**: An alloy made of copper and zinc. This is one of the alloys we are looking for.
- **Gun Metal**: An alloy that typically contains copper, tin, and a small amount of zinc. Therefore, it also contains both copper and zinc.
- **Type Metal**: An alloy that contains lead, antimony, and tin, but does not contain copper or zinc.

3. **Conclusion**: From the analysis:
- **Brass** contains both copper and zinc.
- **Gun Metal** also contains both copper and zinc.
- **Bronze** and **Type Metal** do not contain zinc.

Thus, the alloys that contain both copper and zinc are **Brass** and **Gun Metal**.

### Final Answer:
The alloys that contain both Cu and Zn are **Brass** and **Gun Metal**.