Given: 

Which modification enables the code fragment to print Speaker? 

Answer options:

A. Implement Predicate in the Product.ProductFilter class and replace line n2 with .filter (p -> p.ProductFilter.test (p))
B. Replace line n1 with: public static boolean isAvailable (Product p) {
C. Replace line n2 with: .filter (p -> p.ProductFilter: :isAvailable (p))
D. Replace line n2 with: .filter (p -> Product: :ProductFilter: :isAvailable ())

B