The alloy bronze contains copper and tin. This is a:

 

Bronze is an alloy predominantly made of copper, generally with 12–15% tin, and occasionally with the addition of other metals (such as iron, manganese, nickel, or zinc), as well as frequently non-metals or metalloids like silicon, arsenic, or phosphorus. These changes result in a range of alloys that may be more durable than simply copper or have additional beneficial qualities like hardness, ductility, or machinability.
Compared to cast iron, bronzes are typically ductile alloys that are far less porous. The underlying metal is protected from further corrosion once a layer of copper oxide (which will eventually turn into copper carbonate) has been created over bronze, which typically only oxidizes superficially.

Homogeneous mixtures are those that have the same composition throughout their mass and there are no visible boundaries between their components. For example, Sugar solution, Brass (alloy). and alcoholic solutions are homogeneous solutions Thus, alloys are homogeneous mixtures of two or more elements. Hence, the alloy bronze made up of two metals copper and tin is a homogeneous mixture.

Hence, option A is correct.