Q) A garden has as many flower-bearing trees as it has fruit-bearing trees. Three-fourths of the trees are old. One-half of the trees are grafted. Which of the following statements is definitely true?
A)All flower bearing trees are grafted
B) All fruit bearing trees are grafted
C) At least one-half of the fruit bearing trees are old.
D) At least one-half of the flower bearing trees are old.