A hardware device that is capable of executing a sequence of instruction is calleda.CUb.Processerc.CPUd.ALU

To determine the correct answer, let’s consider the definitions of each term provided:

1. CU (Control Unit): This component of the CPU directs how data moves around the processor and coordinates the execution of instructions by the computer.

2. Processor: This is a general term that refers to a component that processes instructions, including both the CPU and other elements involved in processing tasks.

3. CPU (Central Processing Unit): Often referred to as the brain of the computer, the CPU executes instructions from programs and performs the basic arithmetic, logic, and control operations of the system.

4. ALU (Arithmetic Logic Unit): This part of the CPU is responsible for performing arithmetic and logic operations, but it does not execute a sequence of instructions on its own.

From these definitions, the term that best fits "a hardware device that is capable of executing a sequence of instructions" is c. CPU.

Thus, the correct option is:

Final Answer: c. CPU