The treatment of 1,3-cyclopentadiene with sodium in dry THF yields a product, C₅H₅Na, which exhibits a single ^1H-NMR signal. What is the structure of this product?
A) Sodium 1,3-cyclopentadienide
B) Sodium cyclopentane
C) Sodium 1,2-cyclopentadiene
D) Sodium cyclopentadiene