2. A batch of 100 offspring is grown from a cross between a parent with a green stem and a mystery parent. All of the offspring have purple stems. What must be true of the mystery parent?
O A The mystery parent must have the genotype ANLIANL.
OB. The mystery parent must have the genotype ANL/anl.
O c The mystery parent must have the genotype anl/anl.
OD Nothing can be determined about the genotype of the mystery parent.