Which of the following statement is correct about fructose?

Fructose has the molecular formula C6H12O6. It belongs to D-series and is laevorotatory compound. It also exists in two cyclic forms which are obtained by the addition of-OH at C-5 to the group. The ring thus formed is a five membered ring and is named as furanose with the analogy to the compound furan.Furan is a five membered cyclic compound with one oxygen and four carbon atoms.