If you want to add a third option too if and else, you can use

1. Print
2. Input
3. Alter
4. Elif

Actually, the correct syntax for adding a third option in an if-else statement is by using the keyword "elif". Here's an example:

```python
if condition1:
# execute code if condition1 is True
print("Option 1")
elif condition2:
# execute code if condition1 is False and condition2 is True
print("Option 2")
else:
# execute code if both condition1 and condition2 are False
print("Option 3")
```

In this case, "elif" stands for "else if" and allows you to specify a new condition to check if the preceding "if" statement is not True.