___________ and ________ are alloys of copper.

Options

A. Brass and Bronze
B. Brass and alloy steel
C. Copper pyrites and malachite
D. Copper glance and cuprite

Explanation

To answer the question "___________ and ________ are alloys of copper," we need to identify the alloys that are commonly associated with copper.

### Step-by-Step Solution:

1. **Understanding Alloys**: An alloy is a mixture of two or more elements, where at least one of them is a metal. Copper is known to form various alloys with different metals.

2. **Identifying Common Alloys of Copper**: The most common alloys of copper include:
- **Brass**: This is an alloy of copper and zinc. It is known for its yellowish color and is used in musical instruments, fittings, and coins.
- **Bronze**: This is an alloy of copper and tin, and sometimes other elements. It is known for its strength and resistance to corrosion, making it useful for sculptures, medals, and ship fittings.

3. **Finalizing the Answer**: Based on the common knowledge of copper alloys, we can conclude that the two alloys of copper are:
- Brass
- Bronze

Thus, the complete answer is: **Brass and Bronze** are alloys of copper.