What is the primary function of the Central Processing Unit (CPU) in relation to compiled code?

The primary function of the Central Processing Unit (CPU) is to execute machine code directly. When a program is compiled, the source code written in a high-level programming language is translated into machine code, which is a set of instructions that the CPU can understand and process. This is done to enable the CPU to perform computing tasks by executing these instructions to carry out operations such as calculations, data movement, and control flow.

The CPU does not store the source code; that's the role of storage systems like hard drives or SSDs. Editing the source code is typically done using software development tools or text editors, which is separate from the CPU's functions. While the CPU ultimately plays a role in displaying output, it does so only by executing the relevant code that interacts with the display device rather than being responsible for the display itself. The most direct and critical function of the CPU with respect to compiled code is its ability to execute machine code, making option B the correct choice.