Question: How can I cleanly make crisp fat free flour taco shells?

  Options: 
 A. Place flour tortillas into the spaces between the bottom of an inverted muffin, spray with cooking oil (like pam) first, bake at 400 degrees for 15 min.
 B. Place flour tortillas into the spaces between the bottom of an inverted muffin tin, spray with cooking oil (like pam) first, bake at 400 degrees for 15 min.
Answer: B