Datapath ImplementationStudent: Hi, Professor Curtis? I'm a little confused about （1） implementation. Do you have time to help me?Instructor: Sure, Angela. Come on in. What's confusing you?Student: Well, I know that the control gives （2）. But I don't really understand the data flow.Instructor: Like you said, the （3） gives instructions to the datapath. Do you know what the first step is?Student: No, I don't.Instructor: Take a guess.Student: Is it having the PC fetch the next instruction?Instructor: That's right. See, you understand better than you think you do. From there, we usually have to follow a memory-reference instruction.Student: Okay. Then what?Instructor: Well, all instruction classes use the （4）. So that's where the data goes next.Student: All of them? I thought it was just for arithmetic-logical instructions.Instructor: I know why you might think that, but it's not the case. After that, it's a matter of sending the （5） to the right destination. Does that make sense?