Biomolecules

For "invert sugar", the correct statement(s) is(are)

(Given : specific rotations of (+)-sucrose, (+)-maltose, L-(\(-\))-glucose and L-(+)-fructose in aqueous solution are +66\(^\circ\), +140\(^\circ\), \(-\)52\(^\circ\) and +92\(^\circ\), respectively.)