Explanation:

The Control Unit (CU) is the component within the CPU responsible for orchestrating and directing all operations, including fetching, decoding, and executing instructions, thereby telling the rest of the computer how to carry out a program's instructions. Option (a) ALU performs calculations. Option (b) Memory unit stores data. Option (d) Motherboard connects components. Option (c) Control unit is the precise component. Option (e) is incorrect.