[Tkinter] Command button, then more command buttons

[Heyjoe]

Dear Python Users:

I've added some submenus to the option buttons.

1) First start the program.
2) Press the red "Press here to start button"
5 option buttons will come up.
3) Press option1. 3 finalsel buttons come up (but the options buttons don't disappear).

In the "final function" there are 5 commented out commands at the beginning of the function.
I am a beginner but I am sure these commands don't work because of namespace and/or scope issues.

Is there a way to get the option buttons to disappear without using global variables?

import tkinter as tk
root = tk.Tk()
root.geometry("800x800")


#Secondmenu brings up a second set of buttons.  How do I make the "Press here to starbutton" disappear before this second set of buttons come up

def secondmenu():
    start.pack_forget()

    Option1  = tk.Button(root, text="Option1", bg="white", \
                            fg="firebrick", relief = "groove", font = "Helvitica 30",command = final).pack()

    Option2  = tk.Button(root, text="Option2", bg="white", \
                            fg="firebrick", relief = "groove", font = "Helvitica 30",command = final).pack()

    Option3  = tk.Button(root, text="Option3", bg="white", \
                            fg="firebrick", relief = "groove", font = "Helvitica 30",command = final).pack()

    Option4  = tk.Button(root, text="Option4", bg="white", \
                            fg="firebrick", relief = "groove", font = "Helvitica 30",command = final).pack()

    Option5  = tk.Button(root, text="Option5", bg="white", \
                            fg="firebrick", relief = "groove", font = "Helvitica 30",command = final).pack()

def final ():
    
    #Option1.pack_forget()
    #Option2.pack_forget()
    #Option3.pack_forget()
    #Option4.pack_forget()
    #Option5.pack_forget()
    finalsel1= tk.Button(root, text="finalsel1", bg="white", \
                        fg="firebrick", relief="groove", font="Helvitica 30", ).pack()

    finalsel2 = tk.Button(root, text="finalsel2", bg="white", \
                        fg="firebrick", relief="groove", font="Helvitica 30", ).pack()

    finalsel3 = tk.Button(root, text="finalsel3", bg="white", \
                        fg="firebrick", relief="groove", font="Helvitica 30", ).pack()


#This is the button you will see when you start the program

start = tk.Button(root, text="Press here to start", bg="red", fg="black", font = "Helvitica 30",command = secondmenu)

start.pack()

root.mainloop()