.model small
.stack 1000h

.data
prompt db “Welcome to the Main Menu”, 13, 10, “1. Adding 2 numbers”, 13, 10, “2. Odd and Even”, 13, 10, “3. Positive and Negative”, 13, 10, “4. Exit”, 13, 10,”Enter your choice: $”
invalid db “Invalid choice. Please try again.$”
newline db 13, 10, “$”
msg1 DB 10,13,’Enter the first digit: $’
msg2 DB 10,13,’Enter the second digit: $’
msg3 DB 10,13,’The sum is: $’
msg4 DB 10,13,’Enter first number: $’
msg5 DB 10,13,’Enter second number: $’
msg6 DB 10,13,’The results are: $’
even_msg db ‘ is even.$’
odd_msg db ‘ is odd.$’
x DB ?
y DB ?
sum DB ?

.code
start:
; Initialize data segment
mov ax, @data
mov ds, ax

display_menu:
; Display welcome message and menu
mov ah, 09h
lea dx, newline
int 21h
mov ah, 09h
lea dx, prompt
int 21h

read_choice:
; Read user input
mov ah, 01h
int 21h
sub al, ‘0’ ; Convert ASCII digit to numeric value

; Check user's choice
cmp al, 1
je option1_selected
cmp al, 2
je option2_selected
cmp al, 3
je option3_selected
cmp al, 4
je exit_program

jmp invalid_choice

option1_selected:
; Display message to enter first digit
mov ah, 09h
lea dx, msg1
int 21h

; Read first digit
mov ah, 01h
int 21h
sub al, '0'
mov x, al

; Display message to enter second digit
mov ah, 09h
lea dx, msg2
int 21h

; Read second digit
mov ah, 01h
int 21h
sub al, '0'
mov y, al

; Calculate sum
mov al, x
add al, y
mov sum, al

; Display sum
mov ah, 09h
lea dx, msg3
int 21h

; Display sum value
mov dl, sum
add dl, '0'
mov ah, 02h
int 21h
jmp short display_menu  ; Return to main menu

option2_selected:
; Display prompts for the numbers
mov ah, 9
lea dx, msg4
int 21h

; Read the first number
mov ah, 1
int 21h
mov bl, al ; Store the first number

; Display prompts for the numbers
mov ah, 9
lea dx, msg5
int 21h

; Read the second number
mov ah, 1
int 21h
mov cl, al ; Store the second number

; Display result message
mov ah, 9
lea dx, msg6
int 21h

; Display the first number
mov ah, 2
mov dl, bl
int 21h

; Display whether the first number is even or odd
mov ah, 9
mov al, bl
test al, 1
jz first_even
lea dx, odd_msg
int 21h
jmp second_check

first_even:
lea dx, even_msg
int 21h

; Display the second number

second_check:
mov ah, 2
mov dl, cl
int 21h

; Display whether the second number is even or odd
mov ah, 9
mov al, cl
test al, 1
jz second_even
lea dx, odd_msg
int 21h

second_even:
lea dx, even_msg
int 21h
jmp short display_menu ; Return to main menu
jmp display_menu

Here is my code. The error always says that relative jump out of ra nge by 001Ch and 001Bh bytes.