Goal: How can you keep your taco shell crispy when building your tacos?

Which of the following methods is more reasonable for accomplishing this goal?

OPTIONS:
- Place cheese in the taco before any of the other fillings, it will form a shield over the shell and protect it from moisture in other fillings.
- Place sauce in the taco before any of the other fillings, it will form a shield over the shell and protect it from moisture in other fillings.
Place cheese in the taco before any of the other fillings, it will form a shield over the shell and protect it from moisture in other fillings.