The correct option is B Sugar solution
The basic carbon and energy source for yeast growth are sugars. Starch can not be used because yeast does not contain the appropriate enzymes to hydrolyze this substrate to fermentable sugars. Beet and cane molasses are commonly used as raw material because the sugars present in molasses, a mixture of sucrose, fructose and glucose, are readily fermentable.In addition to sugar, yeast also require certain minerals, vitamins and salts for growth.