Instruction: Evaluate each product title in the given list, assess its relevance to the given query, and then arrange the products in descending order of relevance, with the most relevant product at the top of the ranked list.

Input:
Query: swanson multivitamin without iron
Product list:
A: Swanson Delayed-Release Leg Vein Essentials 60 Veg Capsules
B: Metagenics - PhytoMulti Without Iron  Multivitamin Supplement (120 Tablets)
C: Swanson Butea Superba Root Full Spectrum Intimacy & Sexual Support 400 Milligrams 60 Capsules 2 Pack
Answer: C,B,A