The enzymatic mixture for chemical isolation of protoplast is
(a) 0.5% macrozyme, 2% onozuka cellulase, 13% mannitol
(b) 1.5% macrozyme, 0.5% onozuka cellulase,12% sorbitol
(c) 2% macrozyme, 0.5% onozuka cellulase, 13% sorbitol
(d) 0.1% macrozyme, 2% onozuka cellulase, 15% mannitol