Please choose the correct solution to the question: How is a bungee cord made.

Solution1: Bungee cord is made of one or more strands of an elastic material, usually rubber, bound together by a fabric covering. It is commonly used as a tie-down for luggage or equipment. Commercial bungee cords for jumping undergo strict requirements for safety.

Solution2: Bungee cord is made of one or more strands of an elastic material, usually rubber, bound together by a fabric covering. It is commonly used as a tie-down for luggage or equipment. Commercial bungee cords for jumping undergo no strict requirements for safety.

Answer format: solution1/solution2
Answer: solution1