Many crops today are offered as tissue-cultured plantlets, stage 2 or stage 3. This form of vegetative propagation offers many advantages to growers, primarily in that plants grown from tissue are ________ and ________.
a. more disease-resistant and have consistent genetic traits
b. faster to mature and have higher yields
c. easier to transplant and have better root development
d. more tolerant to environmental stress and have improved flavor profiles